Home / 1,101,951.68-1,520,609.93-618,423.40

Finding the Fourth Proportional to 1,101,951.68, 1,520,609.93 and 618,423.40

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Solution

The fourth proportional to 1,101,951.68, 1,520,609.93 and 618,423.40 is: 853,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,951.68 : 1,520,609.93 = 618,423.40 : x
  2. Step 2: Convert to fraction form
    1,101,951.68/1,520,609.93 = 618,423.40/x
  3. Step 3: Cross multiply
    1,101,951.68x = 1,520,609.93 × 618,423.40
  4. Step 4: Simplify right side
    1,101,951.68x = 940,380,764,112.10
  5. Step 5: Solve for x
    x = 940,380,764,112.10/1,101,951.68
  6. Step 6: Final answer
    x = 853,377.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.