Home / 729,864-1,095,385.68-309,435.12

Finding the Fourth Proportional to 729,864, 1,095,385.68 and 309,435.12

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Solution

The fourth proportional to 729,864, 1,095,385.68 and 309,435.12 is: 464,402.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,864 : 1,095,385.68 = 309,435.12 : x
  2. Step 2: Convert to fraction form
    729,864/1,095,385.68 = 309,435.12/x
  3. Step 3: Cross multiply
    729,864x = 1,095,385.68 × 309,435.12
  4. Step 4: Simplify right side
    729,864x = 338,950,799,337.08
  5. Step 5: Solve for x
    x = 338,950,799,337.08/729,864
  6. Step 6: Final answer
    x = 464,402.68

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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.