Home / 767,755.95-1,151,633.79-412,280.97

Finding the Fourth Proportional to 767,755.95, 1,151,633.79 and 412,280.97

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Solution

The fourth proportional to 767,755.95, 1,151,633.79 and 412,280.97 is: 618,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,755.95 : 1,151,633.79 = 412,280.97 : x
  2. Step 2: Convert to fraction form
    767,755.95/1,151,633.79 = 412,280.97/x
  3. Step 3: Cross multiply
    767,755.95x = 1,151,633.79 × 412,280.97
  4. Step 4: Simplify right side
    767,755.95x = 474,796,696,025.98
  5. Step 5: Solve for x
    x = 474,796,696,025.98/767,755.95
  6. Step 6: Final answer
    x = 618,421.38

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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.