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Finding the Fourth Proportional to 978,170.96, 1,465,088.84 and 751,865.04

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Solution

The fourth proportional to 978,170.96, 1,465,088.84 and 751,865.04 is: 1,126,131.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,170.96 : 1,465,088.84 = 751,865.04 : x
  2. Step 2: Convert to fraction form
    978,170.96/1,465,088.84 = 751,865.04/x
  3. Step 3: Cross multiply
    978,170.96x = 1,465,088.84 × 751,865.04
  4. Step 4: Simplify right side
    978,170.96x = 1,101,549,079,290.15
  5. Step 5: Solve for x
    x = 1,101,549,079,290.15/978,170.96
  6. Step 6: Final answer
    x = 1,126,131.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.