Home / 1,120,014.64-1,680,018.77-278,566.39

Finding the Fourth Proportional to 1,120,014.64, 1,680,018.77 and 278,566.39

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Solution

The fourth proportional to 1,120,014.64, 1,680,018.77 and 278,566.39 is: 417,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,014.64 : 1,680,018.77 = 278,566.39 : x
  2. Step 2: Convert to fraction form
    1,120,014.64/1,680,018.77 = 278,566.39/x
  3. Step 3: Cross multiply
    1,120,014.64x = 1,680,018.77 × 278,566.39
  4. Step 4: Simplify right side
    1,120,014.64x = 467,996,766,687.58
  5. Step 5: Solve for x
    x = 467,996,766,687.58/1,120,014.64
  6. Step 6: Final answer
    x = 417,848.79

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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.