Home / 768,439.47-1,152,557.11-228,686.07

Finding the Fourth Proportional to 768,439.47, 1,152,557.11 and 228,686.07

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Solution

The fourth proportional to 768,439.47, 1,152,557.11 and 228,686.07 is: 342,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,439.47 : 1,152,557.11 = 228,686.07 : x
  2. Step 2: Convert to fraction form
    768,439.47/1,152,557.11 = 228,686.07/x
  3. Step 3: Cross multiply
    768,439.47x = 1,152,557.11 × 228,686.07
  4. Step 4: Simplify right side
    768,439.47x = 263,573,755,936.46
  5. Step 5: Solve for x
    x = 263,573,755,936.46/768,439.47
  6. Step 6: Final answer
    x = 342,998.72

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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.