Home / 3,947,761.20-5,921,641.80-3,581,657.40

Finding the Fourth Proportional to 3,947,761.20, 5,921,641.80 and 3,581,657.40

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Solution

The fourth proportional to 3,947,761.20, 5,921,641.80 and 3,581,657.40 is: 5,372,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,761.20 : 5,921,641.80 = 3,581,657.40 : x
  2. Step 2: Convert to fraction form
    3,947,761.20/5,921,641.80 = 3,581,657.40/x
  3. Step 3: Cross multiply
    3,947,761.20x = 5,921,641.80 × 3,581,657.40
  4. Step 4: Simplify right side
    3,947,761.20x = 21,209,292,173,119.32
  5. Step 5: Solve for x
    x = 21,209,292,173,119.32/3,947,761.20
  6. Step 6: Final answer
    x = 5,372,486.10

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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.