Home / 2,187,113.20-3,280,669.80-766,656.70

Finding the Fourth Proportional to 2,187,113.20, 3,280,669.80 and 766,656.70

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Solution

The fourth proportional to 2,187,113.20, 3,280,669.80 and 766,656.70 is: 1,149,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,113.20 : 3,280,669.80 = 766,656.70 : x
  2. Step 2: Convert to fraction form
    2,187,113.20/3,280,669.80 = 766,656.70/x
  3. Step 3: Cross multiply
    2,187,113.20x = 3,280,669.80 × 766,656.70
  4. Step 4: Simplify right side
    2,187,113.20x = 2,515,147,482,657.66
  5. Step 5: Solve for x
    x = 2,515,147,482,657.66/2,187,113.20
  6. Step 6: Final answer
    x = 1,149,985.05

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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.