Home / 742,609.54-1,024,625.46-420,319.59

Finding the Fourth Proportional to 742,609.54, 1,024,625.46 and 420,319.59

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Solution

The fourth proportional to 742,609.54, 1,024,625.46 and 420,319.59 is: 579,941.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,609.54 : 1,024,625.46 = 420,319.59 : x
  2. Step 2: Convert to fraction form
    742,609.54/1,024,625.46 = 420,319.59/x
  3. Step 3: Cross multiply
    742,609.54x = 1,024,625.46 × 420,319.59
  4. Step 4: Simplify right side
    742,609.54x = 430,670,153,250.76
  5. Step 5: Solve for x
    x = 430,670,153,250.76/742,609.54
  6. Step 6: Final answer
    x = 579,941.58

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Double scale
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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.