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Finding the Fourth Proportional to 580,097.39, 800,681.55 and 396,410.35

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Solution

The fourth proportional to 580,097.39, 800,681.55 and 396,410.35 is: 547,146.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,097.39 : 800,681.55 = 396,410.35 : x
  2. Step 2: Convert to fraction form
    580,097.39/800,681.55 = 396,410.35/x
  3. Step 3: Cross multiply
    580,097.39x = 800,681.55 × 396,410.35
  4. Step 4: Simplify right side
    580,097.39x = 317,398,449,470.64
  5. Step 5: Solve for x
    x = 317,398,449,470.64/580,097.39
  6. Step 6: Final answer
    x = 547,146.83

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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.