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Finding the Fourth Proportional to 456,113.92, 628,775.04 and 319,722.88

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Solution

The fourth proportional to 456,113.92, 628,775.04 and 319,722.88 is: 440,753.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,113.92 : 628,775.04 = 319,722.88 : x
  2. Step 2: Convert to fraction form
    456,113.92/628,775.04 = 319,722.88/x
  3. Step 3: Cross multiply
    456,113.92x = 628,775.04 × 319,722.88
  4. Step 4: Simplify right side
    456,113.92x = 201,033,766,660.92
  5. Step 5: Solve for x
    x = 201,033,766,660.92/456,113.92
  6. Step 6: Final answer
    x = 440,753.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.