Home / 688,429.33-1,031,148.63-332,697.38

Finding the Fourth Proportional to 688,429.33, 1,031,148.63 and 332,697.38

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Solution

The fourth proportional to 688,429.33, 1,031,148.63 and 332,697.38 is: 498,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,429.33 : 1,031,148.63 = 332,697.38 : x
  2. Step 2: Convert to fraction form
    688,429.33/1,031,148.63 = 332,697.38/x
  3. Step 3: Cross multiply
    688,429.33x = 1,031,148.63 × 332,697.38
  4. Step 4: Simplify right side
    688,429.33x = 343,060,442,435.85
  5. Step 5: Solve for x
    x = 343,060,442,435.85/688,429.33
  6. Step 6: Final answer
    x = 498,323.40

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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.