Home / 981,487.46-1,472,228.93-307,620.11

Finding the Fourth Proportional to 981,487.46, 1,472,228.93 and 307,620.11

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Solution

The fourth proportional to 981,487.46, 1,472,228.93 and 307,620.11 is: 461,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,487.46 : 1,472,228.93 = 307,620.11 : x
  2. Step 2: Convert to fraction form
    981,487.46/1,472,228.93 = 307,620.11/x
  3. Step 3: Cross multiply
    981,487.46x = 1,472,228.93 × 307,620.11
  4. Step 4: Simplify right side
    981,487.46x = 452,887,216,492.54
  5. Step 5: Solve for x
    x = 452,887,216,492.54/981,487.46
  6. Step 6: Final answer
    x = 461,429.45

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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.