Home / 747,301.36-1,031,300.76-407,788.24

Finding the Fourth Proportional to 747,301.36, 1,031,300.76 and 407,788.24

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Solution

The fourth proportional to 747,301.36, 1,031,300.76 and 407,788.24 is: 562,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,301.36 : 1,031,300.76 = 407,788.24 : x
  2. Step 2: Convert to fraction form
    747,301.36/1,031,300.76 = 407,788.24/x
  3. Step 3: Cross multiply
    747,301.36x = 1,031,300.76 × 407,788.24
  4. Step 4: Simplify right side
    747,301.36x = 420,552,321,831.06
  5. Step 5: Solve for x
    x = 420,552,321,831.06/747,301.36
  6. Step 6: Final answer
    x = 562,761.35

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.