Home / 1,210,252.20-1,815,378.30-1,079,615.40

Finding the Fourth Proportional to 1,210,252.20, 1,815,378.30 and 1,079,615.40

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Solution

The fourth proportional to 1,210,252.20, 1,815,378.30 and 1,079,615.40 is: 1,619,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,252.20 : 1,815,378.30 = 1,079,615.40 : x
  2. Step 2: Convert to fraction form
    1,210,252.20/1,815,378.30 = 1,079,615.40/x
  3. Step 3: Cross multiply
    1,210,252.20x = 1,815,378.30 × 1,079,615.40
  4. Step 4: Simplify right side
    1,210,252.20x = 1,959,910,369,505.82
  5. Step 5: Solve for x
    x = 1,959,910,369,505.82/1,210,252.20
  6. Step 6: Final answer
    x = 1,619,423.10

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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.