Home / 326,869.20-488,991.60-282,983.40

Finding the Fourth Proportional to 326,869.20, 488,991.60 and 282,983.40

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Solution

The fourth proportional to 326,869.20, 488,991.60 and 282,983.40 is: 423,339.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,869.20 : 488,991.60 = 282,983.40 : x
  2. Step 2: Convert to fraction form
    326,869.20/488,991.60 = 282,983.40/x
  3. Step 3: Cross multiply
    326,869.20x = 488,991.60 × 282,983.40
  4. Step 4: Simplify right side
    326,869.20x = 138,376,505,539.44
  5. Step 5: Solve for x
    x = 138,376,505,539.44/326,869.20
  6. Step 6: Final answer
    x = 423,339.08

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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.