Home / 879,654.83-1,319,586.11-280,405.89

Finding the Fourth Proportional to 879,654.83, 1,319,586.11 and 280,405.89

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Solution

The fourth proportional to 879,654.83, 1,319,586.11 and 280,405.89 is: 420,641.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,654.83 : 1,319,586.11 = 280,405.89 : x
  2. Step 2: Convert to fraction form
    879,654.83/1,319,586.11 = 280,405.89/x
  3. Step 3: Cross multiply
    879,654.83x = 1,319,586.11 × 280,405.89
  4. Step 4: Simplify right side
    879,654.83x = 370,019,716,204.16
  5. Step 5: Solve for x
    x = 370,019,716,204.16/879,654.83
  6. Step 6: Final answer
    x = 420,641.94

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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.