Home / 767,844.28-1,059,647.64-428,305.24

Finding the Fourth Proportional to 767,844.28, 1,059,647.64 and 428,305.24

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Solution

The fourth proportional to 767,844.28, 1,059,647.64 and 428,305.24 is: 591,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,844.28 : 1,059,647.64 = 428,305.24 : x
  2. Step 2: Convert to fraction form
    767,844.28/1,059,647.64 = 428,305.24/x
  3. Step 3: Cross multiply
    767,844.28x = 1,059,647.64 × 428,305.24
  4. Step 4: Simplify right side
    767,844.28x = 453,852,636,765.63
  5. Step 5: Solve for x
    x = 453,852,636,765.63/767,844.28
  6. Step 6: Final answer
    x = 591,073.80

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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.