Home / 589,913.28-813,979.71-331,723.35

Finding the Fourth Proportional to 589,913.28, 813,979.71 and 331,723.35

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Solution

The fourth proportional to 589,913.28, 813,979.71 and 331,723.35 is: 457,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,913.28 : 813,979.71 = 331,723.35 : x
  2. Step 2: Convert to fraction form
    589,913.28/813,979.71 = 331,723.35/x
  3. Step 3: Cross multiply
    589,913.28x = 813,979.71 × 331,723.35
  4. Step 4: Simplify right side
    589,913.28x = 270,016,076,233.23
  5. Step 5: Solve for x
    x = 270,016,076,233.23/589,913.28
  6. Step 6: Final answer
    x = 457,721.64

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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.