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Finding the Fourth Proportional to 558,713.38, 771,009.68 and 304,059.10

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Solution

The fourth proportional to 558,713.38, 771,009.68 and 304,059.10 is: 419,593.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,713.38 : 771,009.68 = 304,059.10 : x
  2. Step 2: Convert to fraction form
    558,713.38/771,009.68 = 304,059.10/x
  3. Step 3: Cross multiply
    558,713.38x = 771,009.68 × 304,059.10
  4. Step 4: Simplify right side
    558,713.38x = 234,432,509,392.09
  5. Step 5: Solve for x
    x = 234,432,509,392.09/558,713.38
  6. Step 6: Final answer
    x = 419,593.51

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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.