Home / 2,773,115.20-4,159,672.80-1,280,123.20

Finding the Fourth Proportional to 2,773,115.20, 4,159,672.80 and 1,280,123.20

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Solution

The fourth proportional to 2,773,115.20, 4,159,672.80 and 1,280,123.20 is: 1,920,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773,115.20 : 4,159,672.80 = 1,280,123.20 : x
  2. Step 2: Convert to fraction form
    2,773,115.20/4,159,672.80 = 1,280,123.20/x
  3. Step 3: Cross multiply
    2,773,115.20x = 4,159,672.80 × 1,280,123.20
  4. Step 4: Simplify right side
    2,773,115.20x = 5,324,893,655,688.96
  5. Step 5: Solve for x
    x = 5,324,893,655,688.96/2,773,115.20
  6. Step 6: Final answer
    x = 1,920,184.80

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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.