Home / 772,935.67-1,066,650.28-428,823.78

Finding the Fourth Proportional to 772,935.67, 1,066,650.28 and 428,823.78

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Solution

The fourth proportional to 772,935.67, 1,066,650.28 and 428,823.78 is: 591,776.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,935.67 : 1,066,650.28 = 428,823.78 : x
  2. Step 2: Convert to fraction form
    772,935.67/1,066,650.28 = 428,823.78/x
  3. Step 3: Cross multiply
    772,935.67x = 1,066,650.28 × 428,823.78
  4. Step 4: Simplify right side
    772,935.67x = 457,405,005,007.66
  5. Step 5: Solve for x
    x = 457,405,005,007.66/772,935.67
  6. Step 6: Final answer
    x = 591,776.29

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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.