Home / 757,308.15-1,134,920.25-324,507.51

Finding the Fourth Proportional to 757,308.15, 1,134,920.25 and 324,507.51

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Solution

The fourth proportional to 757,308.15, 1,134,920.25 and 324,507.51 is: 486,314.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,308.15 : 1,134,920.25 = 324,507.51 : x
  2. Step 2: Convert to fraction form
    757,308.15/1,134,920.25 = 324,507.51/x
  3. Step 3: Cross multiply
    757,308.15x = 1,134,920.25 × 324,507.51
  4. Step 4: Simplify right side
    757,308.15x = 368,290,144,376.08
  5. Step 5: Solve for x
    x = 368,290,144,376.08/757,308.15
  6. Step 6: Final answer
    x = 486,314.78

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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.