Home / 818,745.10-1,228,117.65-732,139.90

Finding the Fourth Proportional to 818,745.10, 1,228,117.65 and 732,139.90

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Solution

The fourth proportional to 818,745.10, 1,228,117.65 and 732,139.90 is: 1,098,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,745.10 : 1,228,117.65 = 732,139.90 : x
  2. Step 2: Convert to fraction form
    818,745.10/1,228,117.65 = 732,139.90/x
  3. Step 3: Cross multiply
    818,745.10x = 1,228,117.65 × 732,139.90
  4. Step 4: Simplify right side
    818,745.10x = 899,153,933,459.24
  5. Step 5: Solve for x
    x = 899,153,933,459.24/818,745.10
  6. Step 6: Final answer
    x = 1,098,209.85

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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.