Home / 763,515.39-1,145,083.83-258,065.13

Finding the Fourth Proportional to 763,515.39, 1,145,083.83 and 258,065.13

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Solution

The fourth proportional to 763,515.39, 1,145,083.83 and 258,065.13 is: 387,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,515.39 : 1,145,083.83 = 258,065.13 : x
  2. Step 2: Convert to fraction form
    763,515.39/1,145,083.83 = 258,065.13/x
  3. Step 3: Cross multiply
    763,515.39x = 1,145,083.83 × 258,065.13
  4. Step 4: Simplify right side
    763,515.39x = 295,506,207,449.85
  5. Step 5: Solve for x
    x = 295,506,207,449.85/763,515.39
  6. Step 6: Final answer
    x = 387,033.73

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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.