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Finding the Fourth Proportional to 539,692.88, 745,437.48 and 404,332.16

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Solution

The fourth proportional to 539,692.88, 745,437.48 and 404,332.16 is: 558,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,692.88 : 745,437.48 = 404,332.16 : x
  2. Step 2: Convert to fraction form
    539,692.88/745,437.48 = 404,332.16/x
  3. Step 3: Cross multiply
    539,692.88x = 745,437.48 × 404,332.16
  4. Step 4: Simplify right side
    539,692.88x = 301,404,346,433.36
  5. Step 5: Solve for x
    x = 301,404,346,433.36/539,692.88
  6. Step 6: Final answer
    x = 558,473.82

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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.