Home / 977,372.46-1,347,974.30-687,942.16

Finding the Fourth Proportional to 977,372.46, 1,347,974.30 and 687,942.16

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Solution

The fourth proportional to 977,372.46, 1,347,974.30 and 687,942.16 is: 948,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,372.46 : 1,347,974.30 = 687,942.16 : x
  2. Step 2: Convert to fraction form
    977,372.46/1,347,974.30 = 687,942.16/x
  3. Step 3: Cross multiply
    977,372.46x = 1,347,974.30 × 687,942.16
  4. Step 4: Simplify right side
    977,372.46x = 927,328,351,566.49
  5. Step 5: Solve for x
    x = 927,328,351,566.49/977,372.46
  6. Step 6: Final answer
    x = 948,797.30

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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.