Home / 986,077.75-1,478,449.18-386,664.79

Finding the Fourth Proportional to 986,077.75, 1,478,449.18 and 386,664.79

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Solution

The fourth proportional to 986,077.75, 1,478,449.18 and 386,664.79 is: 579,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,077.75 : 1,478,449.18 = 386,664.79 : x
  2. Step 2: Convert to fraction form
    986,077.75/1,478,449.18 = 386,664.79/x
  3. Step 3: Cross multiply
    986,077.75x = 1,478,449.18 × 386,664.79
  4. Step 4: Simplify right side
    986,077.75x = 571,664,232,384.80
  5. Step 5: Solve for x
    x = 571,664,232,384.80/986,077.75
  6. Step 6: Final answer
    x = 579,735.46

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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.