Home / 772,934.67-1,066,648.91-428,822.78

Finding the Fourth Proportional to 772,934.67, 1,066,648.91 and 428,822.78

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Solution

The fourth proportional to 772,934.67, 1,066,648.91 and 428,822.78 is: 591,774.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,934.67 : 1,066,648.91 = 428,822.78 : x
  2. Step 2: Convert to fraction form
    772,934.67/1,066,648.91 = 428,822.78/x
  3. Step 3: Cross multiply
    772,934.67x = 1,066,648.91 × 428,822.78
  4. Step 4: Simplify right side
    772,934.67x = 457,403,343,392.81
  5. Step 5: Solve for x
    x = 457,403,343,392.81/772,934.67
  6. Step 6: Final answer
    x = 591,774.91

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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.