Home / 1,178,214.89-1,625,380.34-1,007,961.72

Finding the Fourth Proportional to 1,178,214.89, 1,625,380.34 and 1,007,961.72

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Solution

The fourth proportional to 1,178,214.89, 1,625,380.34 and 1,007,961.72 is: 1,390,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,214.89 : 1,625,380.34 = 1,007,961.72 : x
  2. Step 2: Convert to fraction form
    1,178,214.89/1,625,380.34 = 1,007,961.72/x
  3. Step 3: Cross multiply
    1,178,214.89x = 1,625,380.34 × 1,007,961.72
  4. Step 4: Simplify right side
    1,178,214.89x = 1,638,321,162,585.86
  5. Step 5: Solve for x
    x = 1,638,321,162,585.86/1,178,214.89
  6. Step 6: Final answer
    x = 1,390,511.34

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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.