Home / 1,791,990.78-2,472,946.18-987,174.78

Finding the Fourth Proportional to 1,791,990.78, 2,472,946.18 and 987,174.78

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Solution

The fourth proportional to 1,791,990.78, 2,472,946.18 and 987,174.78 is: 1,362,300.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,990.78 : 2,472,946.18 = 987,174.78 : x
  2. Step 2: Convert to fraction form
    1,791,990.78/2,472,946.18 = 987,174.78/x
  3. Step 3: Cross multiply
    1,791,990.78x = 2,472,946.18 × 987,174.78
  4. Step 4: Simplify right side
    1,791,990.78x = 2,441,230,101,193.34
  5. Step 5: Solve for x
    x = 2,441,230,101,193.34/1,791,990.78
  6. Step 6: Final answer
    x = 1,362,300.59

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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.