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Finding the Fourth Proportional to 538,417.10, 807,625.65 and 528,049.10

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Solution

The fourth proportional to 538,417.10, 807,625.65 and 528,049.10 is: 792,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,417.10 : 807,625.65 = 528,049.10 : x
  2. Step 2: Convert to fraction form
    538,417.10/807,625.65 = 528,049.10/x
  3. Step 3: Cross multiply
    538,417.10x = 807,625.65 × 528,049.10
  4. Step 4: Simplify right side
    538,417.10x = 426,465,997,619.42
  5. Step 5: Solve for x
    x = 426,465,997,619.42/538,417.10
  6. Step 6: Final answer
    x = 792,073.65

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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.