Home / 479,671.97-719,382.60-142,621.85

Finding the Fourth Proportional to 479,671.97, 719,382.60 and 142,621.85

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Solution

The fourth proportional to 479,671.97, 719,382.60 and 142,621.85 is: 213,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,671.97 : 719,382.60 = 142,621.85 : x
  2. Step 2: Convert to fraction form
    479,671.97/719,382.60 = 142,621.85/x
  3. Step 3: Cross multiply
    479,671.97x = 719,382.60 × 142,621.85
  4. Step 4: Simplify right side
    479,671.97x = 102,599,679,068.27
  5. Step 5: Solve for x
    x = 102,599,679,068.27/479,671.97
  6. Step 6: Final answer
    x = 213,895.51

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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.