Home / 388,869.60-583,304.40-122,711.70

Finding the Fourth Proportional to 388,869.60, 583,304.40 and 122,711.70

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Solution

The fourth proportional to 388,869.60, 583,304.40 and 122,711.70 is: 184,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,869.60 : 583,304.40 = 122,711.70 : x
  2. Step 2: Convert to fraction form
    388,869.60/583,304.40 = 122,711.70/x
  3. Step 3: Cross multiply
    388,869.60x = 583,304.40 × 122,711.70
  4. Step 4: Simplify right side
    388,869.60x = 71,578,274,541.48
  5. Step 5: Solve for x
    x = 71,578,274,541.48/388,869.60
  6. Step 6: Final answer
    x = 184,067.55

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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.