Home / 874,704.47-1,207,104.25-487,509.11

Finding the Fourth Proportional to 874,704.47, 1,207,104.25 and 487,509.11

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Solution

The fourth proportional to 874,704.47, 1,207,104.25 and 487,509.11 is: 672,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,704.47 : 1,207,104.25 = 487,509.11 : x
  2. Step 2: Convert to fraction form
    874,704.47/1,207,104.25 = 487,509.11/x
  3. Step 3: Cross multiply
    874,704.47x = 1,207,104.25 × 487,509.11
  4. Step 4: Simplify right side
    874,704.47x = 588,474,312,015.04
  5. Step 5: Solve for x
    x = 588,474,312,015.04/874,704.47
  6. Step 6: Final answer
    x = 672,769.30

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Double scale
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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.