Home / 1,564,642.02-2,158,959.38-911,375.61

Finding the Fourth Proportional to 1,564,642.02, 2,158,959.38 and 911,375.61

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Solution

The fourth proportional to 1,564,642.02, 2,158,959.38 and 911,375.61 is: 1,257,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,642.02 : 2,158,959.38 = 911,375.61 : x
  2. Step 2: Convert to fraction form
    1,564,642.02/2,158,959.38 = 911,375.61/x
  3. Step 3: Cross multiply
    1,564,642.02x = 2,158,959.38 × 911,375.61
  4. Step 4: Simplify right side
    1,564,642.02x = 1,967,622,921,912.72
  5. Step 5: Solve for x
    x = 1,967,622,921,912.72/1,564,642.02
  6. Step 6: Final answer
    x = 1,257,554.70

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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.