Home / 783,302.59-1,081,311.69-493,340.31

Finding the Fourth Proportional to 783,302.59, 1,081,311.69 and 493,340.31

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Solution

The fourth proportional to 783,302.59, 1,081,311.69 and 493,340.31 is: 681,032.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,302.59 : 1,081,311.69 = 493,340.31 : x
  2. Step 2: Convert to fraction form
    783,302.59/1,081,311.69 = 493,340.31/x
  3. Step 3: Cross multiply
    783,302.59x = 1,081,311.69 × 493,340.31
  4. Step 4: Simplify right side
    783,302.59x = 533,454,644,351.22
  5. Step 5: Solve for x
    x = 533,454,644,351.22/783,302.59
  6. Step 6: Final answer
    x = 681,032.66

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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.