Home / 420,824.60-580,737.02-229,838.00

Finding the Fourth Proportional to 420,824.60, 580,737.02 and 229,838.00

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Solution

The fourth proportional to 420,824.60, 580,737.02 and 229,838.00 is: 317,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,824.60 : 580,737.02 = 229,838.00 : x
  2. Step 2: Convert to fraction form
    420,824.60/580,737.02 = 229,838.00/x
  3. Step 3: Cross multiply
    420,824.60x = 580,737.02 × 229,838.00
  4. Step 4: Simplify right side
    420,824.60x = 133,475,431,149.89
  5. Step 5: Solve for x
    x = 133,475,431,149.89/420,824.60
  6. Step 6: Final answer
    x = 317,175.93

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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.