Home / 981,431.18-1,472,382.06-475,400.74

Finding the Fourth Proportional to 981,431.18, 1,472,382.06 and 475,400.74

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Solution

The fourth proportional to 981,431.18, 1,472,382.06 and 475,400.74 is: 713,215.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,431.18 : 1,472,382.06 = 475,400.74 : x
  2. Step 2: Convert to fraction form
    981,431.18/1,472,382.06 = 475,400.74/x
  3. Step 3: Cross multiply
    981,431.18x = 1,472,382.06 × 475,400.74
  4. Step 4: Simplify right side
    981,431.18x = 699,971,520,886.72
  5. Step 5: Solve for x
    x = 699,971,520,886.72/981,431.18
  6. Step 6: Final answer
    x = 713,215.08

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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.