Home / 782,005.13-1,078,247.65-626,832.36

Finding the Fourth Proportional to 782,005.13, 1,078,247.65 and 626,832.36

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Solution

The fourth proportional to 782,005.13, 1,078,247.65 and 626,832.36 is: 864,291.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,005.13 : 1,078,247.65 = 626,832.36 : x
  2. Step 2: Convert to fraction form
    782,005.13/1,078,247.65 = 626,832.36/x
  3. Step 3: Cross multiply
    782,005.13x = 1,078,247.65 × 626,832.36
  4. Step 4: Simplify right side
    782,005.13x = 675,880,517,205.90
  5. Step 5: Solve for x
    x = 675,880,517,205.90/782,005.13
  6. Step 6: Final answer
    x = 864,291.66

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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.