Home / 1,127,013.20-1,690,624.04-407,534.48

Finding the Fourth Proportional to 1,127,013.20, 1,690,624.04 and 407,534.48

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Solution

The fourth proportional to 1,127,013.20, 1,690,624.04 and 407,534.48 is: 611,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,013.20 : 1,690,624.04 = 407,534.48 : x
  2. Step 2: Convert to fraction form
    1,127,013.20/1,690,624.04 = 407,534.48/x
  3. Step 3: Cross multiply
    1,127,013.20x = 1,690,624.04 × 407,534.48
  4. Step 4: Simplify right side
    1,127,013.20x = 688,987,589,016.90
  5. Step 5: Solve for x
    x = 688,987,589,016.90/1,127,013.20
  6. Step 6: Final answer
    x = 611,339.41

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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.