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Finding the Fourth Proportional to 662,404.80, 993,607.20 and 556,116.60

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Solution

The fourth proportional to 662,404.80, 993,607.20 and 556,116.60 is: 834,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,404.80 : 993,607.20 = 556,116.60 : x
  2. Step 2: Convert to fraction form
    662,404.80/993,607.20 = 556,116.60/x
  3. Step 3: Cross multiply
    662,404.80x = 993,607.20 × 556,116.60
  4. Step 4: Simplify right side
    662,404.80x = 552,561,457,799.52
  5. Step 5: Solve for x
    x = 552,561,457,799.52/662,404.80
  6. Step 6: Final answer
    x = 834,174.90

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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.