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Finding the Fourth Proportional to 491,043.87, 732,966.84 and 454,979.03

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Solution

The fourth proportional to 491,043.87, 732,966.84 and 454,979.03 is: 679,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,043.87 : 732,966.84 = 454,979.03 : x
  2. Step 2: Convert to fraction form
    491,043.87/732,966.84 = 454,979.03/x
  3. Step 3: Cross multiply
    491,043.87x = 732,966.84 × 454,979.03
  4. Step 4: Simplify right side
    491,043.87x = 333,484,538,220.53
  5. Step 5: Solve for x
    x = 333,484,538,220.53/491,043.87
  6. Step 6: Final answer
    x = 679,133.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.