Home / 879,205.12-1,318,793.28-280,158.24

Finding the Fourth Proportional to 879,205.12, 1,318,793.28 and 280,158.24

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Solution

The fourth proportional to 879,205.12, 1,318,793.28 and 280,158.24 is: 420,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,205.12 : 1,318,793.28 = 280,158.24 : x
  2. Step 2: Convert to fraction form
    879,205.12/1,318,793.28 = 280,158.24/x
  3. Step 3: Cross multiply
    879,205.12x = 1,318,793.28 × 280,158.24
  4. Step 4: Simplify right side
    879,205.12x = 369,470,804,248.63
  5. Step 5: Solve for x
    x = 369,470,804,248.63/879,205.12
  6. Step 6: Final answer
    x = 420,232.77

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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.