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Finding the Fourth Proportional to 647,801.50, 894,252.72 and 418,470.60

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Solution

The fourth proportional to 647,801.50, 894,252.72 and 418,470.60 is: 577,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,801.50 : 894,252.72 = 418,470.60 : x
  2. Step 2: Convert to fraction form
    647,801.50/894,252.72 = 418,470.60/x
  3. Step 3: Cross multiply
    647,801.50x = 894,252.72 × 418,470.60
  4. Step 4: Simplify right side
    647,801.50x = 374,218,472,290.03
  5. Step 5: Solve for x
    x = 374,218,472,290.03/647,801.50
  6. Step 6: Final answer
    x = 577,674.60

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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.