Home / 911,510.60-1,367,247.90-272,247.28

Finding the Fourth Proportional to 911,510.60, 1,367,247.90 and 272,247.28

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Solution

The fourth proportional to 911,510.60, 1,367,247.90 and 272,247.28 is: 408,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,510.60 : 1,367,247.90 = 272,247.28 : x
  2. Step 2: Convert to fraction form
    911,510.60/1,367,247.90 = 272,247.28/x
  3. Step 3: Cross multiply
    911,510.60x = 1,367,247.90 × 272,247.28
  4. Step 4: Simplify right side
    911,510.60x = 372,229,521,860.71
  5. Step 5: Solve for x
    x = 372,229,521,860.71/911,510.60
  6. Step 6: Final answer
    x = 408,365.54

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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.