Home / 2,287,564.80-3,431,371.68-690,141.60

Finding the Fourth Proportional to 2,287,564.80, 3,431,371.68 and 690,141.60

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Solution

The fourth proportional to 2,287,564.80, 3,431,371.68 and 690,141.60 is: 1,035,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287,564.80 : 3,431,371.68 = 690,141.60 : x
  2. Step 2: Convert to fraction form
    2,287,564.80/3,431,371.68 = 690,141.60/x
  3. Step 3: Cross multiply
    2,287,564.80x = 3,431,371.68 × 690,141.60
  4. Step 4: Simplify right side
    2,287,564.80x = 2,368,132,341,429.89
  5. Step 5: Solve for x
    x = 2,368,132,341,429.89/2,287,564.80
  6. Step 6: Final answer
    x = 1,035,219.79

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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.