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Finding the Fourth Proportional to 709,935.04, 979,713.40 and 387,652.24

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Solution

The fourth proportional to 709,935.04, 979,713.40 and 387,652.24 is: 534,961.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,935.04 : 979,713.40 = 387,652.24 : x
  2. Step 2: Convert to fraction form
    709,935.04/979,713.40 = 387,652.24/x
  3. Step 3: Cross multiply
    709,935.04x = 979,713.40 × 387,652.24
  4. Step 4: Simplify right side
    709,935.04x = 379,788,094,068.02
  5. Step 5: Solve for x
    x = 379,788,094,068.02/709,935.04
  6. Step 6: Final answer
    x = 534,961.75

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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.