Home / 879,254.10-1,318,856.43-280,251.15

Finding the Fourth Proportional to 879,254.10, 1,318,856.43 and 280,251.15

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Solution

The fourth proportional to 879,254.10, 1,318,856.43 and 280,251.15 is: 420,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,254.10 : 1,318,856.43 = 280,251.15 : x
  2. Step 2: Convert to fraction form
    879,254.10/1,318,856.43 = 280,251.15/x
  3. Step 3: Cross multiply
    879,254.10x = 1,318,856.43 × 280,251.15
  4. Step 4: Simplify right side
    879,254.10x = 369,611,031,192.40
  5. Step 5: Solve for x
    x = 369,611,031,192.40/879,254.10
  6. Step 6: Final answer
    x = 420,368.85

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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.