Home / 772,825.16-1,066,445.30-428,628.62

Finding the Fourth Proportional to 772,825.16, 1,066,445.30 and 428,628.62

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Solution

The fourth proportional to 772,825.16, 1,066,445.30 and 428,628.62 is: 591,477.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,825.16 : 1,066,445.30 = 428,628.62 : x
  2. Step 2: Convert to fraction form
    772,825.16/1,066,445.30 = 428,628.62/x
  3. Step 3: Cross multiply
    772,825.16x = 1,066,445.30 × 428,628.62
  4. Step 4: Simplify right side
    772,825.16x = 457,108,969,769.12
  5. Step 5: Solve for x
    x = 457,108,969,769.12/772,825.16
  6. Step 6: Final answer
    x = 591,477.86

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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.