Home / 389,917.20-583,954.20-264,579.60

Finding the Fourth Proportional to 389,917.20, 583,954.20 and 264,579.60

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Solution

The fourth proportional to 389,917.20, 583,954.20 and 264,579.60 is: 396,244.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,917.20 : 583,954.20 = 264,579.60 : x
  2. Step 2: Convert to fraction form
    389,917.20/583,954.20 = 264,579.60/x
  3. Step 3: Cross multiply
    389,917.20x = 583,954.20 × 264,579.60
  4. Step 4: Simplify right side
    389,917.20x = 154,502,368,654.32
  5. Step 5: Solve for x
    x = 154,502,368,654.32/389,917.20
  6. Step 6: Final answer
    x = 396,244.05

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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.