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Finding the Fourth Proportional to 527,587.97, 728,072.04 and 285,870.35

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Solution

The fourth proportional to 527,587.97, 728,072.04 and 285,870.35 is: 394,501.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,587.97 : 728,072.04 = 285,870.35 : x
  2. Step 2: Convert to fraction form
    527,587.97/728,072.04 = 285,870.35/x
  3. Step 3: Cross multiply
    527,587.97x = 728,072.04 × 285,870.35
  4. Step 4: Simplify right side
    527,587.97x = 208,134,205,259.65
  5. Step 5: Solve for x
    x = 208,134,205,259.65/527,587.97
  6. Step 6: Final answer
    x = 394,501.43

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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.