Home / 862,244.15-1,189,805.93-499,781.70

Finding the Fourth Proportional to 862,244.15, 1,189,805.93 and 499,781.70

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Solution

The fourth proportional to 862,244.15, 1,189,805.93 and 499,781.70 is: 689,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,244.15 : 1,189,805.93 = 499,781.70 : x
  2. Step 2: Convert to fraction form
    862,244.15/1,189,805.93 = 499,781.70/x
  3. Step 3: Cross multiply
    862,244.15x = 1,189,805.93 × 499,781.70
  4. Step 4: Simplify right side
    862,244.15x = 594,643,229,740.75
  5. Step 5: Solve for x
    x = 594,643,229,740.75/862,244.15
  6. Step 6: Final answer
    x = 689,646.00

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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.