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Finding the Fourth Proportional to 626,842.24, 864,920.64 and 372,273.28

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Solution

The fourth proportional to 626,842.24, 864,920.64 and 372,273.28 is: 513,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,842.24 : 864,920.64 = 372,273.28 : x
  2. Step 2: Convert to fraction form
    626,842.24/864,920.64 = 372,273.28/x
  3. Step 3: Cross multiply
    626,842.24x = 864,920.64 × 372,273.28
  4. Step 4: Simplify right side
    626,842.24x = 321,986,843,592.50
  5. Step 5: Solve for x
    x = 321,986,843,592.50/626,842.24
  6. Step 6: Final answer
    x = 513,664.88

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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.