Home / 1,018,720.78-1,528,079.52-270,766.78

Finding the Fourth Proportional to 1,018,720.78, 1,528,079.52 and 270,766.78

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Solution

The fourth proportional to 1,018,720.78, 1,528,079.52 and 270,766.78 is: 406,149.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,720.78 : 1,528,079.52 = 270,766.78 : x
  2. Step 2: Convert to fraction form
    1,018,720.78/1,528,079.52 = 270,766.78/x
  3. Step 3: Cross multiply
    1,018,720.78x = 1,528,079.52 × 270,766.78
  4. Step 4: Simplify right side
    1,018,720.78x = 413,753,171,214.35
  5. Step 5: Solve for x
    x = 413,753,171,214.35/1,018,720.78
  6. Step 6: Final answer
    x = 406,149.73

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1.5x scale

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.