Home / 2,191,046.40-3,287,030.40-1,243,641.60

Finding the Fourth Proportional to 2,191,046.40, 3,287,030.40 and 1,243,641.60

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Solution

The fourth proportional to 2,191,046.40, 3,287,030.40 and 1,243,641.60 is: 1,865,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,046.40 : 3,287,030.40 = 1,243,641.60 : x
  2. Step 2: Convert to fraction form
    2,191,046.40/3,287,030.40 = 1,243,641.60/x
  3. Step 3: Cross multiply
    2,191,046.40x = 3,287,030.40 × 1,243,641.60
  4. Step 4: Simplify right side
    2,191,046.40x = 4,087,887,745,904.64
  5. Step 5: Solve for x
    x = 4,087,887,745,904.64/2,191,046.40
  6. Step 6: Final answer
    x = 1,865,723.95

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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.