Home / 1,386,188.32-2,080,111.92-1,273,384.48

Finding the Fourth Proportional to 1,386,188.32, 2,080,111.92 and 1,273,384.48

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Solution

The fourth proportional to 1,386,188.32, 2,080,111.92 and 1,273,384.48 is: 1,910,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,188.32 : 2,080,111.92 = 1,273,384.48 : x
  2. Step 2: Convert to fraction form
    1,386,188.32/2,080,111.92 = 1,273,384.48/x
  3. Step 3: Cross multiply
    1,386,188.32x = 2,080,111.92 × 1,273,384.48
  4. Step 4: Simplify right side
    1,386,188.32x = 2,648,782,235,591.00
  5. Step 5: Solve for x
    x = 2,648,782,235,591.00/1,386,188.32
  6. Step 6: Final answer
    x = 1,910,838.66

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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.