Home / 891,829.90-1,337,949.19-386,475.71

Finding the Fourth Proportional to 891,829.90, 1,337,949.19 and 386,475.71

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Solution

The fourth proportional to 891,829.90, 1,337,949.19 and 386,475.71 is: 579,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,829.90 : 1,337,949.19 = 386,475.71 : x
  2. Step 2: Convert to fraction form
    891,829.90/1,337,949.19 = 386,475.71/x
  3. Step 3: Cross multiply
    891,829.90x = 1,337,949.19 × 386,475.71
  4. Step 4: Simplify right side
    891,829.90x = 517,084,856,942.52
  5. Step 5: Solve for x
    x = 517,084,856,942.52/891,829.90
  6. Step 6: Final answer
    x = 579,802.11

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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.