Home / 862,088.76-1,189,681.92-499,722.57

Finding the Fourth Proportional to 862,088.76, 1,189,681.92 and 499,722.57

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Solution

The fourth proportional to 862,088.76, 1,189,681.92 and 499,722.57 is: 689,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,088.76 : 1,189,681.92 = 499,722.57 : x
  2. Step 2: Convert to fraction form
    862,088.76/1,189,681.92 = 499,722.57/x
  3. Step 3: Cross multiply
    862,088.76x = 1,189,681.92 × 499,722.57
  4. Step 4: Simplify right side
    862,088.76x = 594,510,906,544.93
  5. Step 5: Solve for x
    x = 594,510,906,544.93/862,088.76
  6. Step 6: Final answer
    x = 689,616.82

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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.