Home / 918,964.84-1,268,229.54-516,582.76

Finding the Fourth Proportional to 918,964.84, 1,268,229.54 and 516,582.76

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Solution

The fourth proportional to 918,964.84, 1,268,229.54 and 516,582.76 is: 712,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,964.84 : 1,268,229.54 = 516,582.76 : x
  2. Step 2: Convert to fraction form
    918,964.84/1,268,229.54 = 516,582.76/x
  3. Step 3: Cross multiply
    918,964.84x = 1,268,229.54 × 516,582.76
  4. Step 4: Simplify right side
    918,964.84x = 655,145,516,086.73
  5. Step 5: Solve for x
    x = 655,145,516,086.73/918,964.84
  6. Step 6: Final answer
    x = 712,916.85

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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.