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Finding the Fourth Proportional to 571,964.80, 857,947.20 and 508,979.20

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Solution

The fourth proportional to 571,964.80, 857,947.20 and 508,979.20 is: 763,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,964.80 : 857,947.20 = 508,979.20 : x
  2. Step 2: Convert to fraction form
    571,964.80/857,947.20 = 508,979.20/x
  3. Step 3: Cross multiply
    571,964.80x = 857,947.20 × 508,979.20
  4. Step 4: Simplify right side
    571,964.80x = 436,677,279,498.24
  5. Step 5: Solve for x
    x = 436,677,279,498.24/571,964.80
  6. Step 6: Final answer
    x = 763,468.80

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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.