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Finding the Fourth Proportional to 551,089.30, 826,633.95 and 411,121.30

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Solution

The fourth proportional to 551,089.30, 826,633.95 and 411,121.30 is: 616,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,089.30 : 826,633.95 = 411,121.30 : x
  2. Step 2: Convert to fraction form
    551,089.30/826,633.95 = 411,121.30/x
  3. Step 3: Cross multiply
    551,089.30x = 826,633.95 × 411,121.30
  4. Step 4: Simplify right side
    551,089.30x = 339,846,824,148.14
  5. Step 5: Solve for x
    x = 339,846,824,148.14/551,089.30
  6. Step 6: Final answer
    x = 616,681.95

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Similar ratio
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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.