Home / 742,403.76-1,024,957.20-488,193.36

Finding the Fourth Proportional to 742,403.76, 1,024,957.20 and 488,193.36

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Solution

The fourth proportional to 742,403.76, 1,024,957.20 and 488,193.36 is: 673,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,403.76 : 1,024,957.20 = 488,193.36 : x
  2. Step 2: Convert to fraction form
    742,403.76/1,024,957.20 = 488,193.36/x
  3. Step 3: Cross multiply
    742,403.76x = 1,024,957.20 × 488,193.36
  4. Step 4: Simplify right side
    742,403.76x = 500,377,299,324.19
  5. Step 5: Solve for x
    x = 500,377,299,324.19/742,403.76
  6. Step 6: Final answer
    x = 673,996.18

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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.