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Finding the Fourth Proportional to 977,654.80, 1,466,482.20 and 800,507.80

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Solution

The fourth proportional to 977,654.80, 1,466,482.20 and 800,507.80 is: 1,200,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,654.80 : 1,466,482.20 = 800,507.80 : x
  2. Step 2: Convert to fraction form
    977,654.80/1,466,482.20 = 800,507.80/x
  3. Step 3: Cross multiply
    977,654.80x = 1,466,482.20 × 800,507.80
  4. Step 4: Simplify right side
    977,654.80x = 1,173,930,439,661.16
  5. Step 5: Solve for x
    x = 1,173,930,439,661.16/977,654.80
  6. Step 6: Final answer
    x = 1,200,761.70

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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.