Home / 747,417.95-1,031,436.48-407,886.20

Finding the Fourth Proportional to 747,417.95, 1,031,436.48 and 407,886.20

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Solution

The fourth proportional to 747,417.95, 1,031,436.48 and 407,886.20 is: 562,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,417.95 : 1,031,436.48 = 407,886.20 : x
  2. Step 2: Convert to fraction form
    747,417.95/1,031,436.48 = 407,886.20/x
  3. Step 3: Cross multiply
    747,417.95x = 1,031,436.48 × 407,886.20
  4. Step 4: Simplify right side
    747,417.95x = 420,708,701,211.39
  5. Step 5: Solve for x
    x = 420,708,701,211.39/747,417.95
  6. Step 6: Final answer
    x = 562,882.79

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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.