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Finding the Fourth Proportional to 617,283.98, 851,687.61 and 423,750.88

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Solution

The fourth proportional to 617,283.98, 851,687.61 and 423,750.88 is: 584,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,283.98 : 851,687.61 = 423,750.88 : x
  2. Step 2: Convert to fraction form
    617,283.98/851,687.61 = 423,750.88/x
  3. Step 3: Cross multiply
    617,283.98x = 851,687.61 × 423,750.88
  4. Step 4: Simplify right side
    617,283.98x = 360,903,369,964.16
  5. Step 5: Solve for x
    x = 360,903,369,964.16/617,283.98
  6. Step 6: Final answer
    x = 584,663.43

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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.