Home / 879,206.85-1,318,795.97-280,159.92

Finding the Fourth Proportional to 879,206.85, 1,318,795.97 and 280,159.92

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Solution

The fourth proportional to 879,206.85, 1,318,795.97 and 280,159.92 is: 420,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,206.85 : 1,318,795.97 = 280,159.92 : x
  2. Step 2: Convert to fraction form
    879,206.85/1,318,795.97 = 280,159.92/x
  3. Step 3: Cross multiply
    879,206.85x = 1,318,795.97 × 280,159.92
  4. Step 4: Simplify right side
    879,206.85x = 369,473,772,050.72
  5. Step 5: Solve for x
    x = 369,473,772,050.72/879,206.85
  6. Step 6: Final answer
    x = 420,235.32

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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.