Home / 1,276,118.08-1,761,121.60-703,158.16

Finding the Fourth Proportional to 1,276,118.08, 1,761,121.60 and 703,158.16

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Solution

The fourth proportional to 1,276,118.08, 1,761,121.60 and 703,158.16 is: 970,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,118.08 : 1,761,121.60 = 703,158.16 : x
  2. Step 2: Convert to fraction form
    1,276,118.08/1,761,121.60 = 703,158.16/x
  3. Step 3: Cross multiply
    1,276,118.08x = 1,761,121.60 × 703,158.16
  4. Step 4: Simplify right side
    1,276,118.08x = 1,238,347,023,792.26
  5. Step 5: Solve for x
    x = 1,238,347,023,792.26/1,276,118.08
  6. Step 6: Final answer
    x = 970,401.60

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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.