Home / 519,029.20-778,569.40-270,197.20

Finding the Fourth Proportional to 519,029.20, 778,569.40 and 270,197.20

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Solution

The fourth proportional to 519,029.20, 778,569.40 and 270,197.20 is: 405,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,029.20 : 778,569.40 = 270,197.20 : x
  2. Step 2: Convert to fraction form
    519,029.20/778,569.40 = 270,197.20/x
  3. Step 3: Cross multiply
    519,029.20x = 778,569.40 × 270,197.20
  4. Step 4: Simplify right side
    519,029.20x = 210,367,271,885.68
  5. Step 5: Solve for x
    x = 210,367,271,885.68/519,029.20
  6. Step 6: Final answer
    x = 405,309.13

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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.