Home / 888,728.40-1,333,091.64-289,689.36

Finding the Fourth Proportional to 888,728.40, 1,333,091.64 and 289,689.36

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Solution

The fourth proportional to 888,728.40, 1,333,091.64 and 289,689.36 is: 434,533.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,728.40 : 1,333,091.64 = 289,689.36 : x
  2. Step 2: Convert to fraction form
    888,728.40/1,333,091.64 = 289,689.36/x
  3. Step 3: Cross multiply
    888,728.40x = 1,333,091.64 × 289,689.36
  4. Step 4: Simplify right side
    888,728.40x = 386,182,464,012.95
  5. Step 5: Solve for x
    x = 386,182,464,012.95/888,728.40
  6. Step 6: Final answer
    x = 434,533.73

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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.