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Finding the Fourth Proportional to 659,953.60, 989,930.40 and 500,521.30

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Solution

The fourth proportional to 659,953.60, 989,930.40 and 500,521.30 is: 750,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,953.60 : 989,930.40 = 500,521.30 : x
  2. Step 2: Convert to fraction form
    659,953.60/989,930.40 = 500,521.30/x
  3. Step 3: Cross multiply
    659,953.60x = 989,930.40 × 500,521.30
  4. Step 4: Simplify right side
    659,953.60x = 495,481,250,717.52
  5. Step 5: Solve for x
    x = 495,481,250,717.52/659,953.60
  6. Step 6: Final answer
    x = 750,781.95

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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.