Home / 1,417,877.40-2,126,816.10-780,148.20

Finding the Fourth Proportional to 1,417,877.40, 2,126,816.10 and 780,148.20

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Solution

The fourth proportional to 1,417,877.40, 2,126,816.10 and 780,148.20 is: 1,170,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,877.40 : 2,126,816.10 = 780,148.20 : x
  2. Step 2: Convert to fraction form
    1,417,877.40/2,126,816.10 = 780,148.20/x
  3. Step 3: Cross multiply
    1,417,877.40x = 2,126,816.10 × 780,148.20
  4. Step 4: Simplify right side
    1,417,877.40x = 1,659,231,752,146.02
  5. Step 5: Solve for x
    x = 1,659,231,752,146.02/1,417,877.40
  6. Step 6: Final answer
    x = 1,170,222.30

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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.