Home / 874,785.30-1,207,057.55-487,516.16

Finding the Fourth Proportional to 874,785.30, 1,207,057.55 and 487,516.16

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Solution

The fourth proportional to 874,785.30, 1,207,057.55 and 487,516.16 is: 672,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,785.30 : 1,207,057.55 = 487,516.16 : x
  2. Step 2: Convert to fraction form
    874,785.30/1,207,057.55 = 487,516.16/x
  3. Step 3: Cross multiply
    874,785.30x = 1,207,057.55 × 487,516.16
  4. Step 4: Simplify right side
    874,785.30x = 588,460,053,202.14
  5. Step 5: Solve for x
    x = 588,460,053,202.14/874,785.30
  6. Step 6: Final answer
    x = 672,690.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.