Home / 772,918.29-1,066,589.72-428,767.92

Finding the Fourth Proportional to 772,918.29, 1,066,589.72 and 428,767.92

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Solution

The fourth proportional to 772,918.29, 1,066,589.72 and 428,767.92 is: 591,678.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,918.29 : 1,066,589.72 = 428,767.92 : x
  2. Step 2: Convert to fraction form
    772,918.29/1,066,589.72 = 428,767.92/x
  3. Step 3: Cross multiply
    772,918.29x = 1,066,589.72 × 428,767.92
  4. Step 4: Simplify right side
    772,918.29x = 457,319,453,593.94
  5. Step 5: Solve for x
    x = 457,319,453,593.94/772,918.29
  6. Step 6: Final answer
    x = 591,678.91

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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.