Home / 766,314.87-1,057,514.52-426,783.12

Finding the Fourth Proportional to 766,314.87, 1,057,514.52 and 426,783.12

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Solution

The fourth proportional to 766,314.87, 1,057,514.52 and 426,783.12 is: 588,960.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,314.87 : 1,057,514.52 = 426,783.12 : x
  2. Step 2: Convert to fraction form
    766,314.87/1,057,514.52 = 426,783.12/x
  3. Step 3: Cross multiply
    766,314.87x = 1,057,514.52 × 426,783.12
  4. Step 4: Simplify right side
    766,314.87x = 451,329,346,290.90
  5. Step 5: Solve for x
    x = 451,329,346,290.90/766,314.87
  6. Step 6: Final answer
    x = 588,960.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.