Home / 1,278,671.52-1,916,403.48-678,150.48

Finding the Fourth Proportional to 1,278,671.52, 1,916,403.48 and 678,150.48

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Solution

The fourth proportional to 1,278,671.52, 1,916,403.48 and 678,150.48 is: 1,016,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,671.52 : 1,916,403.48 = 678,150.48 : x
  2. Step 2: Convert to fraction form
    1,278,671.52/1,916,403.48 = 678,150.48/x
  3. Step 3: Cross multiply
    1,278,671.52x = 1,916,403.48 × 678,150.48
  4. Step 4: Simplify right side
    1,278,671.52x = 1,299,609,939,835.67
  5. Step 5: Solve for x
    x = 1,299,609,939,835.67/1,278,671.52
  6. Step 6: Final answer
    x = 1,016,375.14

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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.