Home / 981,507.36-1,472,260.32-316,659.36

Finding the Fourth Proportional to 981,507.36, 1,472,260.32 and 316,659.36

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Solution

The fourth proportional to 981,507.36, 1,472,260.32 and 316,659.36 is: 474,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,507.36 : 1,472,260.32 = 316,659.36 : x
  2. Step 2: Convert to fraction form
    981,507.36/1,472,260.32 = 316,659.36/x
  3. Step 3: Cross multiply
    981,507.36x = 1,472,260.32 × 316,659.36
  4. Step 4: Simplify right side
    981,507.36x = 466,205,010,684.60
  5. Step 5: Solve for x
    x = 466,205,010,684.60/981,507.36
  6. Step 6: Final answer
    x = 474,988.81

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1.5x scale

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.