Home / 688,462.40-1,031,198.12-332,730.36

Finding the Fourth Proportional to 688,462.40, 1,031,198.12 and 332,730.36

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Solution

The fourth proportional to 688,462.40, 1,031,198.12 and 332,730.36 is: 498,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,462.40 : 1,031,198.12 = 332,730.36 : x
  2. Step 2: Convert to fraction form
    688,462.40/1,031,198.12 = 332,730.36/x
  3. Step 3: Cross multiply
    688,462.40x = 1,031,198.12 × 332,730.36
  4. Step 4: Simplify right side
    688,462.40x = 343,110,921,698.92
  5. Step 5: Solve for x
    x = 343,110,921,698.92/688,462.40
  6. Step 6: Final answer
    x = 498,372.78

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1.5x scale

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.