Home / 862,191.95-1,189,717.07-499,609.22

Finding the Fourth Proportional to 862,191.95, 1,189,717.07 and 499,609.22

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Solution

The fourth proportional to 862,191.95, 1,189,717.07 and 499,609.22 is: 689,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,191.95 : 1,189,717.07 = 499,609.22 : x
  2. Step 2: Convert to fraction form
    862,191.95/1,189,717.07 = 499,609.22/x
  3. Step 3: Cross multiply
    862,191.95x = 1,189,717.07 × 499,609.22
  4. Step 4: Simplify right side
    862,191.95x = 594,393,608,916.75
  5. Step 5: Solve for x
    x = 594,393,608,916.75/862,191.95
  6. Step 6: Final answer
    x = 689,398.24

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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.