Home / 557,921.28-769,931.88-303,272.46

Finding the Fourth Proportional to 557,921.28, 769,931.88 and 303,272.46

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Solution

The fourth proportional to 557,921.28, 769,931.88 and 303,272.46 is: 418,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,921.28 : 769,931.88 = 303,272.46 : x
  2. Step 2: Convert to fraction form
    557,921.28/769,931.88 = 303,272.46/x
  3. Step 3: Cross multiply
    557,921.28x = 769,931.88 × 303,272.46
  4. Step 4: Simplify right side
    557,921.28x = 233,499,135,280.03
  5. Step 5: Solve for x
    x = 233,499,135,280.03/557,921.28
  6. Step 6: Final answer
    x = 418,516.27

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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.