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Finding the Fourth Proportional to 663,121.30, 994,681.95 and 497,233.30

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Solution

The fourth proportional to 663,121.30, 994,681.95 and 497,233.30 is: 745,849.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,121.30 : 994,681.95 = 497,233.30 : x
  2. Step 2: Convert to fraction form
    663,121.30/994,681.95 = 497,233.30/x
  3. Step 3: Cross multiply
    663,121.30x = 994,681.95 × 497,233.30
  4. Step 4: Simplify right side
    663,121.30x = 494,588,988,448.94
  5. Step 5: Solve for x
    x = 494,588,988,448.94/663,121.30
  6. Step 6: Final answer
    x = 745,849.95

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Double scale
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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.