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Finding the Fourth Proportional to 556,140.80, 834,211.20 and 377,681.60

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Solution

The fourth proportional to 556,140.80, 834,211.20 and 377,681.60 is: 566,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,140.80 : 834,211.20 = 377,681.60 : x
  2. Step 2: Convert to fraction form
    556,140.80/834,211.20 = 377,681.60/x
  3. Step 3: Cross multiply
    556,140.80x = 834,211.20 × 377,681.60
  4. Step 4: Simplify right side
    556,140.80x = 315,066,220,753.92
  5. Step 5: Solve for x
    x = 315,066,220,753.92/556,140.80
  6. Step 6: Final answer
    x = 566,522.40

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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.