Home / 1,380,511.86-1,905,192.81-836,695.14

Finding the Fourth Proportional to 1,380,511.86, 1,905,192.81 and 836,695.14

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Solution

The fourth proportional to 1,380,511.86, 1,905,192.81 and 836,695.14 is: 1,154,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,511.86 : 1,905,192.81 = 836,695.14 : x
  2. Step 2: Convert to fraction form
    1,380,511.86/1,905,192.81 = 836,695.14/x
  3. Step 3: Cross multiply
    1,380,511.86x = 1,905,192.81 × 836,695.14
  4. Step 4: Simplify right side
    1,380,511.86x = 1,594,065,564,889.94
  5. Step 5: Solve for x
    x = 1,594,065,564,889.94/1,380,511.86
  6. Step 6: Final answer
    x = 1,154,691.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.