Home / 673,012.20-1,009,518.30-424,180.20

Finding the Fourth Proportional to 673,012.20, 1,009,518.30 and 424,180.20

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Solution

The fourth proportional to 673,012.20, 1,009,518.30 and 424,180.20 is: 636,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,012.20 : 1,009,518.30 = 424,180.20 : x
  2. Step 2: Convert to fraction form
    673,012.20/1,009,518.30 = 424,180.20/x
  3. Step 3: Cross multiply
    673,012.20x = 1,009,518.30 × 424,180.20
  4. Step 4: Simplify right side
    673,012.20x = 428,217,674,397.66
  5. Step 5: Solve for x
    x = 428,217,674,397.66/673,012.20
  6. Step 6: Final answer
    x = 636,270.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.