Home / 987,961.38-1,362,885.12-624,773.58

Finding the Fourth Proportional to 987,961.38, 1,362,885.12 and 624,773.58

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Solution

The fourth proportional to 987,961.38, 1,362,885.12 and 624,773.58 is: 861,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,961.38 : 1,362,885.12 = 624,773.58 : x
  2. Step 2: Convert to fraction form
    987,961.38/1,362,885.12 = 624,773.58/x
  3. Step 3: Cross multiply
    987,961.38x = 1,362,885.12 × 624,773.58
  4. Step 4: Simplify right side
    987,961.38x = 851,494,615,551.13
  5. Step 5: Solve for x
    x = 851,494,615,551.13/987,961.38
  6. Step 6: Final answer
    x = 861,870.35

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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.