Home / 765,645.12-1,056,590.22-426,193.56

Finding the Fourth Proportional to 765,645.12, 1,056,590.22 and 426,193.56

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Solution

The fourth proportional to 765,645.12, 1,056,590.22 and 426,193.56 is: 588,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,645.12 : 1,056,590.22 = 426,193.56 : x
  2. Step 2: Convert to fraction form
    765,645.12/1,056,590.22 = 426,193.56/x
  3. Step 3: Cross multiply
    765,645.12x = 1,056,590.22 × 426,193.56
  4. Step 4: Simplify right side
    765,645.12x = 450,311,947,322.98
  5. Step 5: Solve for x
    x = 450,311,947,322.98/765,645.12
  6. Step 6: Final answer
    x = 588,147.09

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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.