Home / 865,763.89-1,298,524.18-297,135.69

Finding the Fourth Proportional to 865,763.89, 1,298,524.18 and 297,135.69

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Solution

The fourth proportional to 865,763.89, 1,298,524.18 and 297,135.69 is: 445,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,763.89 : 1,298,524.18 = 297,135.69 : x
  2. Step 2: Convert to fraction form
    865,763.89/1,298,524.18 = 297,135.69/x
  3. Step 3: Cross multiply
    865,763.89x = 1,298,524.18 × 297,135.69
  4. Step 4: Simplify right side
    865,763.89x = 385,837,878,948.82
  5. Step 5: Solve for x
    x = 385,837,878,948.82/865,763.89
  6. Step 6: Final answer
    x = 445,661.78

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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.