Home / 773,179.20-1,068,009.30-644,537.88

Finding the Fourth Proportional to 773,179.20, 1,068,009.30 and 644,537.88

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Solution

The fourth proportional to 773,179.20, 1,068,009.30 and 644,537.88 is: 890,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,179.20 : 1,068,009.30 = 644,537.88 : x
  2. Step 2: Convert to fraction form
    773,179.20/1,068,009.30 = 644,537.88/x
  3. Step 3: Cross multiply
    773,179.20x = 1,068,009.30 × 644,537.88
  4. Step 4: Simplify right side
    773,179.20x = 688,372,450,042.28
  5. Step 5: Solve for x
    x = 688,372,450,042.28/773,179.20
  6. Step 6: Final answer
    x = 890,314.24

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1.5x scale

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.