Home / 1,002,545.82-1,503,218.08-319,137.40

Finding the Fourth Proportional to 1,002,545.82, 1,503,218.08 and 319,137.40

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Solution

The fourth proportional to 1,002,545.82, 1,503,218.08 and 319,137.40 is: 478,514.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,545.82 : 1,503,218.08 = 319,137.40 : x
  2. Step 2: Convert to fraction form
    1,002,545.82/1,503,218.08 = 319,137.40/x
  3. Step 3: Cross multiply
    1,002,545.82x = 1,503,218.08 × 319,137.40
  4. Step 4: Simplify right side
    1,002,545.82x = 479,733,109,684.19
  5. Step 5: Solve for x
    x = 479,733,109,684.19/1,002,545.82
  6. Step 6: Final answer
    x = 478,514.90

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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.