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Finding the Fourth Proportional to 538,005.40, 807,008.10 and 532,475.80

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Solution

The fourth proportional to 538,005.40, 807,008.10 and 532,475.80 is: 798,713.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,005.40 : 807,008.10 = 532,475.80 : x
  2. Step 2: Convert to fraction form
    538,005.40/807,008.10 = 532,475.80/x
  3. Step 3: Cross multiply
    538,005.40x = 807,008.10 × 532,475.80
  4. Step 4: Simplify right side
    538,005.40x = 429,712,283,653.98
  5. Step 5: Solve for x
    x = 429,712,283,653.98/538,005.40
  6. Step 6: Final answer
    x = 798,713.70

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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.