Home / 1,291,061.20-1,781,627.46-702,342.16

Finding the Fourth Proportional to 1,291,061.20, 1,781,627.46 and 702,342.16

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Solution

The fourth proportional to 1,291,061.20, 1,781,627.46 and 702,342.16 is: 969,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,061.20 : 1,781,627.46 = 702,342.16 : x
  2. Step 2: Convert to fraction form
    1,291,061.20/1,781,627.46 = 702,342.16/x
  3. Step 3: Cross multiply
    1,291,061.20x = 1,781,627.46 × 702,342.16
  4. Step 4: Simplify right side
    1,291,061.20x = 1,251,312,078,571.71
  5. Step 5: Solve for x
    x = 1,251,312,078,571.71/1,291,061.20
  6. Step 6: Final answer
    x = 969,212.05

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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.