Home / 805,305.50-1,111,293.27-442,726.72

Finding the Fourth Proportional to 805,305.50, 1,111,293.27 and 442,726.72

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Solution

The fourth proportional to 805,305.50, 1,111,293.27 and 442,726.72 is: 610,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,305.50 : 1,111,293.27 = 442,726.72 : x
  2. Step 2: Convert to fraction form
    805,305.50/1,111,293.27 = 442,726.72/x
  3. Step 3: Cross multiply
    805,305.50x = 1,111,293.27 × 442,726.72
  4. Step 4: Simplify right side
    805,305.50x = 491,999,224,385.17
  5. Step 5: Solve for x
    x = 491,999,224,385.17/805,305.50
  6. Step 6: Final answer
    x = 610,947.30

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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.