Home / 688,009.10-1,031,138.85-332,257.10

Finding the Fourth Proportional to 688,009.10, 1,031,138.85 and 332,257.10

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Solution

The fourth proportional to 688,009.10, 1,031,138.85 and 332,257.10 is: 497,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,009.10 : 1,031,138.85 = 332,257.10 : x
  2. Step 2: Convert to fraction form
    688,009.10/1,031,138.85 = 332,257.10/x
  3. Step 3: Cross multiply
    688,009.10x = 1,031,138.85 × 332,257.10
  4. Step 4: Simplify right side
    688,009.10x = 342,603,203,998.34
  5. Step 5: Solve for x
    x = 342,603,203,998.34/688,009.10
  6. Step 6: Final answer
    x = 497,963.19

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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.