Home / 392,505.11-588,875.86-122,622.35

Finding the Fourth Proportional to 392,505.11, 588,875.86 and 122,622.35

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Solution

The fourth proportional to 392,505.11, 588,875.86 and 122,622.35 is: 183,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,505.11 : 588,875.86 = 122,622.35 : x
  2. Step 2: Convert to fraction form
    392,505.11/588,875.86 = 122,622.35/x
  3. Step 3: Cross multiply
    392,505.11x = 588,875.86 × 122,622.35
  4. Step 4: Simplify right side
    392,505.11x = 72,209,340,768.82
  5. Step 5: Solve for x
    x = 72,209,340,768.82/392,505.11
  6. Step 6: Final answer
    x = 183,970.45

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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.