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Finding the Fourth Proportional to 661,686.30, 992,937.70 and 306,634.14

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Solution

The fourth proportional to 661,686.30, 992,937.70 and 306,634.14 is: 460,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,686.30 : 992,937.70 = 306,634.14 : x
  2. Step 2: Convert to fraction form
    661,686.30/992,937.70 = 306,634.14/x
  3. Step 3: Cross multiply
    661,686.30x = 992,937.70 × 306,634.14
  4. Step 4: Simplify right side
    661,686.30x = 304,468,597,713.08
  5. Step 5: Solve for x
    x = 304,468,597,713.08/661,686.30
  6. Step 6: Final answer
    x = 460,140.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.