Home / 1,309,825.46-1,806,897.50-765,605.70

Finding the Fourth Proportional to 1,309,825.46, 1,806,897.50 and 765,605.70

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Solution

The fourth proportional to 1,309,825.46, 1,806,897.50 and 765,605.70 is: 1,056,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,825.46 : 1,806,897.50 = 765,605.70 : x
  2. Step 2: Convert to fraction form
    1,309,825.46/1,806,897.50 = 765,605.70/x
  3. Step 3: Cross multiply
    1,309,825.46x = 1,806,897.50 × 765,605.70
  4. Step 4: Simplify right side
    1,309,825.46x = 1,383,371,025,315.75
  5. Step 5: Solve for x
    x = 1,383,371,025,315.75/1,309,825.46
  6. Step 6: Final answer
    x = 1,056,149.13

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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.