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Finding the Fourth Proportional to 566,488.14, 781,763.57 and 308,372.50

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Solution

The fourth proportional to 566,488.14, 781,763.57 and 308,372.50 is: 425,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,488.14 : 781,763.57 = 308,372.50 : x
  2. Step 2: Convert to fraction form
    566,488.14/781,763.57 = 308,372.50/x
  3. Step 3: Cross multiply
    566,488.14x = 781,763.57 × 308,372.50
  4. Step 4: Simplify right side
    566,488.14x = 241,074,386,489.83
  5. Step 5: Solve for x
    x = 241,074,386,489.83/566,488.14
  6. Step 6: Final answer
    x = 425,559.46

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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.