Home / 2,191,560.54-3,288,866.85-771,730.98

Finding the Fourth Proportional to 2,191,560.54, 3,288,866.85 and 771,730.98

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Solution

The fourth proportional to 2,191,560.54, 3,288,866.85 and 771,730.98 is: 1,158,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,560.54 : 3,288,866.85 = 771,730.98 : x
  2. Step 2: Convert to fraction form
    2,191,560.54/3,288,866.85 = 771,730.98/x
  3. Step 3: Cross multiply
    2,191,560.54x = 3,288,866.85 × 771,730.98
  4. Step 4: Simplify right side
    2,191,560.54x = 2,538,120,437,240.01
  5. Step 5: Solve for x
    x = 2,538,120,437,240.01/2,191,560.54
  6. Step 6: Final answer
    x = 1,158,133.85

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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.