Home / 915,872.08-1,262,443.65-721,963.82

Finding the Fourth Proportional to 915,872.08, 1,262,443.65 and 721,963.82

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Solution

The fourth proportional to 915,872.08, 1,262,443.65 and 721,963.82 is: 995,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,872.08 : 1,262,443.65 = 721,963.82 : x
  2. Step 2: Convert to fraction form
    915,872.08/1,262,443.65 = 721,963.82/x
  3. Step 3: Cross multiply
    915,872.08x = 1,262,443.65 × 721,963.82
  4. Step 4: Simplify right side
    915,872.08x = 911,438,640,088.74
  5. Step 5: Solve for x
    x = 911,438,640,088.74/915,872.08
  6. Step 6: Final answer
    x = 995,159.32

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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.