Home / 1,989,613.22-2,984,129.14-978,463.80

Finding the Fourth Proportional to 1,989,613.22, 2,984,129.14 and 978,463.80

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Solution

The fourth proportional to 1,989,613.22, 2,984,129.14 and 978,463.80 is: 1,467,552.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,613.22 : 2,984,129.14 = 978,463.80 : x
  2. Step 2: Convert to fraction form
    1,989,613.22/2,984,129.14 = 978,463.80/x
  3. Step 3: Cross multiply
    1,989,613.22x = 2,984,129.14 × 978,463.80
  4. Step 4: Simplify right side
    1,989,613.22x = 2,919,862,323,094.49
  5. Step 5: Solve for x
    x = 2,919,862,323,094.49/1,989,613.22
  6. Step 6: Final answer
    x = 1,467,552.74

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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.