Home / 742,012.92-1,023,203.30-440,148.60

Finding the Fourth Proportional to 742,012.92, 1,023,203.30 and 440,148.60

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Solution

The fourth proportional to 742,012.92, 1,023,203.30 and 440,148.60 is: 606,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,012.92 : 1,023,203.30 = 440,148.60 : x
  2. Step 2: Convert to fraction form
    742,012.92/1,023,203.30 = 440,148.60/x
  3. Step 3: Cross multiply
    742,012.92x = 1,023,203.30 × 440,148.60
  4. Step 4: Simplify right side
    742,012.92x = 450,361,500,010.38
  5. Step 5: Solve for x
    x = 450,361,500,010.38/742,012.92
  6. Step 6: Final answer
    x = 606,945.63

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Half scale
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Double scale
Find fourth proportional to 742,013.92, 1,023,204.68 and 440,149.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.