Home / 887,661.12-1,331,439.68-256,560.96

Finding the Fourth Proportional to 887,661.12, 1,331,439.68 and 256,560.96

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Solution

The fourth proportional to 887,661.12, 1,331,439.68 and 256,560.96 is: 384,826.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,661.12 : 1,331,439.68 = 256,560.96 : x
  2. Step 2: Convert to fraction form
    887,661.12/1,331,439.68 = 256,560.96/x
  3. Step 3: Cross multiply
    887,661.12x = 1,331,439.68 × 256,560.96
  4. Step 4: Simplify right side
    887,661.12x = 341,595,442,482.89
  5. Step 5: Solve for x
    x = 341,595,442,482.89/887,661.12
  6. Step 6: Final answer
    x = 384,826.41

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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.