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Finding the Fourth Proportional to 626,437.50, 864,484.37 and 339,957.65

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Solution

The fourth proportional to 626,437.50, 864,484.37 and 339,957.65 is: 469,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,437.50 : 864,484.37 = 339,957.65 : x
  2. Step 2: Convert to fraction form
    626,437.50/864,484.37 = 339,957.65/x
  3. Step 3: Cross multiply
    626,437.50x = 864,484.37 × 339,957.65
  4. Step 4: Simplify right side
    626,437.50x = 293,888,068,864.72
  5. Step 5: Solve for x
    x = 293,888,068,864.72/626,437.50
  6. Step 6: Final answer
    x = 469,141.88

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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.