Home / 847,613.40-1,271,280.34-279,001.90

Finding the Fourth Proportional to 847,613.40, 1,271,280.34 and 279,001.90

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Solution

The fourth proportional to 847,613.40, 1,271,280.34 and 279,001.90 is: 418,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,613.40 : 1,271,280.34 = 279,001.90 : x
  2. Step 2: Convert to fraction form
    847,613.40/1,271,280.34 = 279,001.90/x
  3. Step 3: Cross multiply
    847,613.40x = 1,271,280.34 × 279,001.90
  4. Step 4: Simplify right side
    847,613.40x = 354,689,630,292.65
  5. Step 5: Solve for x
    x = 354,689,630,292.65/847,613.40
  6. Step 6: Final answer
    x = 418,456.85

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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.