Home / 1,015,270.78-1,522,909.77-257,112.04

Finding the Fourth Proportional to 1,015,270.78, 1,522,909.77 and 257,112.04

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Solution

The fourth proportional to 1,015,270.78, 1,522,909.77 and 257,112.04 is: 385,668.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,270.78 : 1,522,909.77 = 257,112.04 : x
  2. Step 2: Convert to fraction form
    1,015,270.78/1,522,909.77 = 257,112.04/x
  3. Step 3: Cross multiply
    1,015,270.78x = 1,522,909.77 × 257,112.04
  4. Step 4: Simplify right side
    1,015,270.78x = 391,558,437,700.63
  5. Step 5: Solve for x
    x = 391,558,437,700.63/1,015,270.78
  6. Step 6: Final answer
    x = 385,668.97

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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.