Home / 763,513.52-1,145,081.12-258,063.35

Finding the Fourth Proportional to 763,513.52, 1,145,081.12 and 258,063.35

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Solution

The fourth proportional to 763,513.52, 1,145,081.12 and 258,063.35 is: 387,031.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,513.52 : 1,145,081.12 = 258,063.35 : x
  2. Step 2: Convert to fraction form
    763,513.52/1,145,081.12 = 258,063.35/x
  3. Step 3: Cross multiply
    763,513.52x = 1,145,081.12 × 258,063.35
  4. Step 4: Simplify right side
    763,513.52x = 295,503,462,833.23
  5. Step 5: Solve for x
    x = 295,503,462,833.23/763,513.52
  6. Step 6: Final answer
    x = 387,031.08

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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.