Home / 727,979.70-1,091,969.55-662,661.30

Finding the Fourth Proportional to 727,979.70, 1,091,969.55 and 662,661.30

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Solution

The fourth proportional to 727,979.70, 1,091,969.55 and 662,661.30 is: 993,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,979.70 : 1,091,969.55 = 662,661.30 : x
  2. Step 2: Convert to fraction form
    727,979.70/1,091,969.55 = 662,661.30/x
  3. Step 3: Cross multiply
    727,979.70x = 1,091,969.55 × 662,661.30
  4. Step 4: Simplify right side
    727,979.70x = 723,605,961,563.42
  5. Step 5: Solve for x
    x = 723,605,961,563.42/727,979.70
  6. Step 6: Final answer
    x = 993,991.95

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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.