Home / 812,280.25-1,218,607.23-272,608.15

Finding the Fourth Proportional to 812,280.25, 1,218,607.23 and 272,608.15

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Solution

The fourth proportional to 812,280.25, 1,218,607.23 and 272,608.15 is: 408,974.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,280.25 : 1,218,607.23 = 272,608.15 : x
  2. Step 2: Convert to fraction form
    812,280.25/1,218,607.23 = 272,608.15/x
  3. Step 3: Cross multiply
    812,280.25x = 1,218,607.23 × 272,608.15
  4. Step 4: Simplify right side
    812,280.25x = 332,202,262,807.58
  5. Step 5: Solve for x
    x = 332,202,262,807.58/812,280.25
  6. Step 6: Final answer
    x = 408,974.93

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1.5x scale

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.