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Finding the Fourth Proportional to 585,987.60, 878,981.40 and 516,003.60

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Solution

The fourth proportional to 585,987.60, 878,981.40 and 516,003.60 is: 774,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,987.60 : 878,981.40 = 516,003.60 : x
  2. Step 2: Convert to fraction form
    585,987.60/878,981.40 = 516,003.60/x
  3. Step 3: Cross multiply
    585,987.60x = 878,981.40 × 516,003.60
  4. Step 4: Simplify right side
    585,987.60x = 453,557,566,733.04
  5. Step 5: Solve for x
    x = 453,557,566,733.04/585,987.60
  6. Step 6: Final answer
    x = 774,005.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.