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Finding the Fourth Proportional to 504,043.80, 756,065.70 and 457,387.80

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Solution

The fourth proportional to 504,043.80, 756,065.70 and 457,387.80 is: 686,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,043.80 : 756,065.70 = 457,387.80 : x
  2. Step 2: Convert to fraction form
    504,043.80/756,065.70 = 457,387.80/x
  3. Step 3: Cross multiply
    504,043.80x = 756,065.70 × 457,387.80
  4. Step 4: Simplify right side
    504,043.80x = 345,815,227,178.46
  5. Step 5: Solve for x
    x = 345,815,227,178.46/504,043.80
  6. Step 6: Final answer
    x = 686,081.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.