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Finding the Fourth Proportional to 585,979.28, 878,994.48 and 286,711.84

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Solution

The fourth proportional to 585,979.28, 878,994.48 and 286,711.84 is: 430,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,979.28 : 878,994.48 = 286,711.84 : x
  2. Step 2: Convert to fraction form
    585,979.28/878,994.48 = 286,711.84/x
  3. Step 3: Cross multiply
    585,979.28x = 878,994.48 × 286,711.84
  4. Step 4: Simplify right side
    585,979.28x = 252,018,124,710.64
  5. Step 5: Solve for x
    x = 252,018,124,710.64/585,979.28
  6. Step 6: Final answer
    x = 430,080.27

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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.