Home / 747,618.12-1,031,714.28-408,086.64

Finding the Fourth Proportional to 747,618.12, 1,031,714.28 and 408,086.64

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Solution

The fourth proportional to 747,618.12, 1,031,714.28 and 408,086.64 is: 563,160.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,618.12 : 1,031,714.28 = 408,086.64 : x
  2. Step 2: Convert to fraction form
    747,618.12/1,031,714.28 = 408,086.64/x
  3. Step 3: Cross multiply
    747,618.12x = 1,031,714.28 × 408,086.64
  4. Step 4: Simplify right side
    747,618.12x = 421,028,813,965.22
  5. Step 5: Solve for x
    x = 421,028,813,965.22/747,618.12
  6. Step 6: Final answer
    x = 563,160.26

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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.