Home / 918,963.84-1,268,228.16-516,581.76

Finding the Fourth Proportional to 918,963.84, 1,268,228.16 and 516,581.76

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Solution

The fourth proportional to 918,963.84, 1,268,228.16 and 516,581.76 is: 712,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,963.84 : 1,268,228.16 = 516,581.76 : x
  2. Step 2: Convert to fraction form
    918,963.84/1,268,228.16 = 516,581.76/x
  3. Step 3: Cross multiply
    918,963.84x = 1,268,228.16 × 516,581.76
  4. Step 4: Simplify right side
    918,963.84x = 655,143,534,974.36
  5. Step 5: Solve for x
    x = 655,143,534,974.36/918,963.84
  6. Step 6: Final answer
    x = 712,915.47

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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.