Home / 831,712.03-1,147,779.24-469,064.90

Finding the Fourth Proportional to 831,712.03, 1,147,779.24 and 469,064.90

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Solution

The fourth proportional to 831,712.03, 1,147,779.24 and 469,064.90 is: 647,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,712.03 : 1,147,779.24 = 469,064.90 : x
  2. Step 2: Convert to fraction form
    831,712.03/1,147,779.24 = 469,064.90/x
  3. Step 3: Cross multiply
    831,712.03x = 1,147,779.24 × 469,064.90
  4. Step 4: Simplify right side
    831,712.03x = 538,382,954,432.68
  5. Step 5: Solve for x
    x = 538,382,954,432.68/831,712.03
  6. Step 6: Final answer
    x = 647,318.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.