Home / 879,267.60-1,318,876.68-280,264.68

Finding the Fourth Proportional to 879,267.60, 1,318,876.68 and 280,264.68

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Solution

The fourth proportional to 879,267.60, 1,318,876.68 and 280,264.68 is: 420,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,267.60 : 1,318,876.68 = 280,264.68 : x
  2. Step 2: Convert to fraction form
    879,267.60/1,318,876.68 = 280,264.68/x
  3. Step 3: Cross multiply
    879,267.60x = 1,318,876.68 × 280,264.68
  4. Step 4: Simplify right side
    879,267.60x = 369,634,550,679.66
  5. Step 5: Solve for x
    x = 369,634,550,679.66/879,267.60
  6. Step 6: Final answer
    x = 420,389.14

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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.