Home / 1,290,801.68-1,781,275.20-702,085.98

Finding the Fourth Proportional to 1,290,801.68, 1,781,275.20 and 702,085.98

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Solution

The fourth proportional to 1,290,801.68, 1,781,275.20 and 702,085.98 is: 968,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,801.68 : 1,781,275.20 = 702,085.98 : x
  2. Step 2: Convert to fraction form
    1,290,801.68/1,781,275.20 = 702,085.98/x
  3. Step 3: Cross multiply
    1,290,801.68x = 1,781,275.20 × 702,085.98
  4. Step 4: Simplify right side
    1,290,801.68x = 1,250,608,344,441.70
  5. Step 5: Solve for x
    x = 1,250,608,344,441.70/1,290,801.68
  6. Step 6: Final answer
    x = 968,861.73

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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.