Home / 747,487.48-1,031,518.36-407,958.16

Finding the Fourth Proportional to 747,487.48, 1,031,518.36 and 407,958.16

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Solution

The fourth proportional to 747,487.48, 1,031,518.36 and 407,958.16 is: 562,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,487.48 : 1,031,518.36 = 407,958.16 : x
  2. Step 2: Convert to fraction form
    747,487.48/1,031,518.36 = 407,958.16/x
  3. Step 3: Cross multiply
    747,487.48x = 1,031,518.36 × 407,958.16
  4. Step 4: Simplify right side
    747,487.48x = 420,816,332,151.82
  5. Step 5: Solve for x
    x = 420,816,332,151.82/747,487.48
  6. Step 6: Final answer
    x = 562,974.42

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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.