Home / 1,398,187.20-2,080,534.56-1,393,463.28

Finding the Fourth Proportional to 1,398,187.20, 2,080,534.56 and 1,393,463.28

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Solution

The fourth proportional to 1,398,187.20, 2,080,534.56 and 1,393,463.28 is: 2,073,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,187.20 : 2,080,534.56 = 1,393,463.28 : x
  2. Step 2: Convert to fraction form
    1,398,187.20/2,080,534.56 = 1,393,463.28/x
  3. Step 3: Cross multiply
    1,398,187.20x = 2,080,534.56 × 1,393,463.28
  4. Step 4: Simplify right side
    1,398,187.20x = 2,899,148,512,130.96
  5. Step 5: Solve for x
    x = 2,899,148,512,130.96/1,398,187.20
  6. Step 6: Final answer
    x = 2,073,505.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.