Home / 981,573.20-1,472,378.25-307,639.58

Finding the Fourth Proportional to 981,573.20, 1,472,378.25 and 307,639.58

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Solution

The fourth proportional to 981,573.20, 1,472,378.25 and 307,639.58 is: 461,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,573.20 : 1,472,378.25 = 307,639.58 : x
  2. Step 2: Convert to fraction form
    981,573.20/1,472,378.25 = 307,639.58/x
  3. Step 3: Cross multiply
    981,573.20x = 1,472,378.25 × 307,639.58
  4. Step 4: Simplify right side
    981,573.20x = 452,961,819,069.24
  5. Step 5: Solve for x
    x = 452,961,819,069.24/981,573.20
  6. Step 6: Final answer
    x = 461,465.15

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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.