Home / 2,287,565.80-3,431,373.18-690,142.60

Finding the Fourth Proportional to 2,287,565.80, 3,431,373.18 and 690,142.60

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Solution

The fourth proportional to 2,287,565.80, 3,431,373.18 and 690,142.60 is: 1,035,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287,565.80 : 3,431,373.18 = 690,142.60 : x
  2. Step 2: Convert to fraction form
    2,287,565.80/3,431,373.18 = 690,142.60/x
  3. Step 3: Cross multiply
    2,287,565.80x = 3,431,373.18 × 690,142.60
  4. Step 4: Simplify right side
    2,287,565.80x = 2,368,136,808,015.47
  5. Step 5: Solve for x
    x = 2,368,136,808,015.47/2,287,565.80
  6. Step 6: Final answer
    x = 1,035,221.29

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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.