Home / 724,587.80-1,085,672.13-319,176

Finding the Fourth Proportional to 724,587.80, 1,085,672.13 and 319,176

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Solution

The fourth proportional to 724,587.80, 1,085,672.13 and 319,176 is: 478,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,587.80 : 1,085,672.13 = 319,176 : x
  2. Step 2: Convert to fraction form
    724,587.80/1,085,672.13 = 319,176/x
  3. Step 3: Cross multiply
    724,587.80x = 1,085,672.13 × 319,176
  4. Step 4: Simplify right side
    724,587.80x = 346,520,487,764.88
  5. Step 5: Solve for x
    x = 346,520,487,764.88/724,587.80
  6. Step 6: Final answer
    x = 478,231.20

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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.