Home / 688,465.25-1,031,959.55-332,990.27

Finding the Fourth Proportional to 688,465.25, 1,031,959.55 and 332,990.27

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Solution

The fourth proportional to 688,465.25, 1,031,959.55 and 332,990.27 is: 499,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,465.25 : 1,031,959.55 = 332,990.27 : x
  2. Step 2: Convert to fraction form
    688,465.25/1,031,959.55 = 332,990.27/x
  3. Step 3: Cross multiply
    688,465.25x = 1,031,959.55 × 332,990.27
  4. Step 4: Simplify right side
    688,465.25x = 343,632,484,856.26
  5. Step 5: Solve for x
    x = 343,632,484,856.26/688,465.25
  6. Step 6: Final answer
    x = 499,128.30

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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.