Home / 2,928,445.40-4,392,263.10-908,078.60

Finding the Fourth Proportional to 2,928,445.40, 4,392,263.10 and 908,078.60

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Solution

The fourth proportional to 2,928,445.40, 4,392,263.10 and 908,078.60 is: 1,361,992.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,445.40 : 4,392,263.10 = 908,078.60 : x
  2. Step 2: Convert to fraction form
    2,928,445.40/4,392,263.10 = 908,078.60/x
  3. Step 3: Cross multiply
    2,928,445.40x = 4,392,263.10 × 908,078.60
  4. Step 4: Simplify right side
    2,928,445.40x = 3,988,520,126,679.66
  5. Step 5: Solve for x
    x = 3,988,520,126,679.66/2,928,445.40
  6. Step 6: Final answer
    x = 1,361,992.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.