Home / 2,146,037.85-2,961,789.71-1,287,070.65

Finding the Fourth Proportional to 2,146,037.85, 2,961,789.71 and 1,287,070.65

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Solution

The fourth proportional to 2,146,037.85, 2,961,789.71 and 1,287,070.65 is: 1,776,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146,037.85 : 2,961,789.71 = 1,287,070.65 : x
  2. Step 2: Convert to fraction form
    2,146,037.85/2,961,789.71 = 1,287,070.65/x
  3. Step 3: Cross multiply
    2,146,037.85x = 2,961,789.71 × 1,287,070.65
  4. Step 4: Simplify right side
    2,146,037.85x = 3,812,032,600,777.66
  5. Step 5: Solve for x
    x = 3,812,032,600,777.66/2,146,037.85
  6. Step 6: Final answer
    x = 1,776,311.91

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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.