Home / 765,852.12-1,149,487.44-387,039.42

Finding the Fourth Proportional to 765,852.12, 1,149,487.44 and 387,039.42

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Solution

The fourth proportional to 765,852.12, 1,149,487.44 and 387,039.42 is: 580,917.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,852.12 : 1,149,487.44 = 387,039.42 : x
  2. Step 2: Convert to fraction form
    765,852.12/1,149,487.44 = 387,039.42/x
  3. Step 3: Cross multiply
    765,852.12x = 1,149,487.44 × 387,039.42
  4. Step 4: Simplify right side
    765,852.12x = 444,896,952,074.89
  5. Step 5: Solve for x
    x = 444,896,952,074.89/765,852.12
  6. Step 6: Final answer
    x = 580,917.57

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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.