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Finding the Fourth Proportional to 804,221.88, 1,205,978.58 and 377,879

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Solution

The fourth proportional to 804,221.88, 1,205,978.58 and 377,879 is: 566,652.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,221.88 : 1,205,978.58 = 377,879 : x
  2. Step 2: Convert to fraction form
    804,221.88/1,205,978.58 = 377,879/x
  3. Step 3: Cross multiply
    804,221.88x = 1,205,978.58 × 377,879
  4. Step 4: Simplify right side
    804,221.88x = 455,713,979,831.82
  5. Step 5: Solve for x
    x = 455,713,979,831.82/804,221.88
  6. Step 6: Final answer
    x = 566,652.05

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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.