Home / 3,115,385.20-4,674,306.60-1,221,804.40

Finding the Fourth Proportional to 3,115,385.20, 4,674,306.60 and 1,221,804.40

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Solution

The fourth proportional to 3,115,385.20, 4,674,306.60 and 1,221,804.40 is: 1,833,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,385.20 : 4,674,306.60 = 1,221,804.40 : x
  2. Step 2: Convert to fraction form
    3,115,385.20/4,674,306.60 = 1,221,804.40/x
  3. Step 3: Cross multiply
    3,115,385.20x = 4,674,306.60 × 1,221,804.40
  4. Step 4: Simplify right side
    3,115,385.20x = 5,711,088,370,829.04
  5. Step 5: Solve for x
    x = 5,711,088,370,829.04/3,115,385.20
  6. Step 6: Final answer
    x = 1,833,188.52

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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.