Home / 772,767.91-1,066,474.25-428,713.93

Finding the Fourth Proportional to 772,767.91, 1,066,474.25 and 428,713.93

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Solution

The fourth proportional to 772,767.91, 1,066,474.25 and 428,713.93 is: 591,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,767.91 : 1,066,474.25 = 428,713.93 : x
  2. Step 2: Convert to fraction form
    772,767.91/1,066,474.25 = 428,713.93/x
  3. Step 3: Cross multiply
    772,767.91x = 1,066,474.25 × 428,713.93
  4. Step 4: Simplify right side
    772,767.91x = 457,212,366,961.30
  5. Step 5: Solve for x
    x = 457,212,366,961.30/772,767.91
  6. Step 6: Final answer
    x = 591,655.48

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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.