Home / 3,121,985.10-4,682,977.65-878,123.10

Finding the Fourth Proportional to 3,121,985.10, 4,682,977.65 and 878,123.10

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Solution

The fourth proportional to 3,121,985.10, 4,682,977.65 and 878,123.10 is: 1,317,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,985.10 : 4,682,977.65 = 878,123.10 : x
  2. Step 2: Convert to fraction form
    3,121,985.10/4,682,977.65 = 878,123.10/x
  3. Step 3: Cross multiply
    3,121,985.10x = 4,682,977.65 × 878,123.10
  4. Step 4: Simplify right side
    3,121,985.10x = 4,112,230,851,248.72
  5. Step 5: Solve for x
    x = 4,112,230,851,248.72/3,121,985.10
  6. Step 6: Final answer
    x = 1,317,184.65

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Similar ratio
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1.5x scale

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.