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Finding the Fourth Proportional to 577,895.88, 867,015.54 and 278,289.84

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Solution

The fourth proportional to 577,895.88, 867,015.54 and 278,289.84 is: 417,517.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,895.88 : 867,015.54 = 278,289.84 : x
  2. Step 2: Convert to fraction form
    577,895.88/867,015.54 = 278,289.84/x
  3. Step 3: Cross multiply
    577,895.88x = 867,015.54 × 278,289.84
  4. Step 4: Simplify right side
    577,895.88x = 241,281,615,904.11
  5. Step 5: Solve for x
    x = 241,281,615,904.11/577,895.88
  6. Step 6: Final answer
    x = 417,517.45

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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.