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Finding the Fourth Proportional to 551,705.20, 827,557.80 and 491,570.80

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Solution

The fourth proportional to 551,705.20, 827,557.80 and 491,570.80 is: 737,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,705.20 : 827,557.80 = 491,570.80 : x
  2. Step 2: Convert to fraction form
    551,705.20/827,557.80 = 491,570.80/x
  3. Step 3: Cross multiply
    551,705.20x = 827,557.80 × 491,570.80
  4. Step 4: Simplify right side
    551,705.20x = 406,803,249,792.24
  5. Step 5: Solve for x
    x = 406,803,249,792.24/551,705.20
  6. Step 6: Final answer
    x = 737,356.20

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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.