Home / 788,804.20-1,182,190.56-687,191.32

Finding the Fourth Proportional to 788,804.20, 1,182,190.56 and 687,191.32

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Solution

The fourth proportional to 788,804.20, 1,182,190.56 and 687,191.32 is: 1,029,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,804.20 : 1,182,190.56 = 687,191.32 : x
  2. Step 2: Convert to fraction form
    788,804.20/1,182,190.56 = 687,191.32/x
  3. Step 3: Cross multiply
    788,804.20x = 1,182,190.56 × 687,191.32
  4. Step 4: Simplify right side
    788,804.20x = 812,391,091,417.94
  5. Step 5: Solve for x
    x = 812,391,091,417.94/788,804.20
  6. Step 6: Final answer
    x = 1,029,902.09

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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.