Home / 782,489.45-1,173,695.49-458,461.10

Finding the Fourth Proportional to 782,489.45, 1,173,695.49 and 458,461.10

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Solution

The fourth proportional to 782,489.45, 1,173,695.49 and 458,461.10 is: 687,668.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,489.45 : 1,173,695.49 = 458,461.10 : x
  2. Step 2: Convert to fraction form
    782,489.45/1,173,695.49 = 458,461.10/x
  3. Step 3: Cross multiply
    782,489.45x = 1,173,695.49 × 458,461.10
  4. Step 4: Simplify right side
    782,489.45x = 538,093,719,541.96
  5. Step 5: Solve for x
    x = 538,093,719,541.96/782,489.45
  6. Step 6: Final answer
    x = 687,668.98

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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.