Home / 345,869.28-518,648.40-334,982.88

Finding the Fourth Proportional to 345,869.28, 518,648.40 and 334,982.88

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Solution

The fourth proportional to 345,869.28, 518,648.40 and 334,982.88 is: 502,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,869.28 : 518,648.40 = 334,982.88 : x
  2. Step 2: Convert to fraction form
    345,869.28/518,648.40 = 334,982.88/x
  3. Step 3: Cross multiply
    345,869.28x = 518,648.40 × 334,982.88
  4. Step 4: Simplify right side
    345,869.28x = 173,738,334,739.39
  5. Step 5: Solve for x
    x = 173,738,334,739.39/345,869.28
  6. Step 6: Final answer
    x = 502,323.70

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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.