Home / 874,725.90-1,207,127.35-487,565.87

Finding the Fourth Proportional to 874,725.90, 1,207,127.35 and 487,565.87

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Solution

The fourth proportional to 874,725.90, 1,207,127.35 and 487,565.87 is: 672,844.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,725.90 : 1,207,127.35 = 487,565.87 : x
  2. Step 2: Convert to fraction form
    874,725.90/1,207,127.35 = 487,565.87/x
  3. Step 3: Cross multiply
    874,725.90x = 1,207,127.35 × 487,565.87
  4. Step 4: Simplify right side
    874,725.90x = 588,554,090,698.17
  5. Step 5: Solve for x
    x = 588,554,090,698.17/874,725.90
  6. Step 6: Final answer
    x = 672,844.02

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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.