Home / 1,220,749.41-1,684,654.40-676,908.12

Finding the Fourth Proportional to 1,220,749.41, 1,684,654.40 and 676,908.12

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Solution

The fourth proportional to 1,220,749.41, 1,684,654.40 and 676,908.12 is: 934,144.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,749.41 : 1,684,654.40 = 676,908.12 : x
  2. Step 2: Convert to fraction form
    1,220,749.41/1,684,654.40 = 676,908.12/x
  3. Step 3: Cross multiply
    1,220,749.41x = 1,684,654.40 × 676,908.12
  4. Step 4: Simplify right side
    1,220,749.41x = 1,140,356,250,763.45
  5. Step 5: Solve for x
    x = 1,140,356,250,763.45/1,220,749.41
  6. Step 6: Final answer
    x = 934,144.42

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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.