Home / 519,628.80-779,281.20-204,182.40

Finding the Fourth Proportional to 519,628.80, 779,281.20 and 204,182.40

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Solution

The fourth proportional to 519,628.80, 779,281.20 and 204,182.40 is: 306,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,628.80 : 779,281.20 = 204,182.40 : x
  2. Step 2: Convert to fraction form
    519,628.80/779,281.20 = 204,182.40/x
  3. Step 3: Cross multiply
    519,628.80x = 779,281.20 × 204,182.40
  4. Step 4: Simplify right side
    519,628.80x = 159,115,505,690.88
  5. Step 5: Solve for x
    x = 159,115,505,690.88/519,628.80
  6. Step 6: Final answer
    x = 306,209.94

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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.