Home / 667,288.20-1,003,265.10-653,291.40

Finding the Fourth Proportional to 667,288.20, 1,003,265.10 and 653,291.40

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Solution

The fourth proportional to 667,288.20, 1,003,265.10 and 653,291.40 is: 982,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,288.20 : 1,003,265.10 = 653,291.40 : x
  2. Step 2: Convert to fraction form
    667,288.20/1,003,265.10 = 653,291.40/x
  3. Step 3: Cross multiply
    667,288.20x = 1,003,265.10 × 653,291.40
  4. Step 4: Simplify right side
    667,288.20x = 655,424,461,750.14
  5. Step 5: Solve for x
    x = 655,424,461,750.14/667,288.20
  6. Step 6: Final answer
    x = 982,220.97

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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.