Home / 776,035.31-1,070,906.78-431,865.75

Finding the Fourth Proportional to 776,035.31, 1,070,906.78 and 431,865.75

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Solution

The fourth proportional to 776,035.31, 1,070,906.78 and 431,865.75 is: 595,962.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,035.31 : 1,070,906.78 = 431,865.75 : x
  2. Step 2: Convert to fraction form
    776,035.31/1,070,906.78 = 431,865.75/x
  3. Step 3: Cross multiply
    776,035.31x = 1,070,906.78 × 431,865.75
  4. Step 4: Simplify right side
    776,035.31x = 462,487,960,804.45
  5. Step 5: Solve for x
    x = 462,487,960,804.45/776,035.31
  6. Step 6: Final answer
    x = 595,962.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.