Home / 919,977.75-1,381,001.67-387,946.26

Finding the Fourth Proportional to 919,977.75, 1,381,001.67 and 387,946.26

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Solution

The fourth proportional to 919,977.75, 1,381,001.67 and 387,946.26 is: 582,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,977.75 : 1,381,001.67 = 387,946.26 : x
  2. Step 2: Convert to fraction form
    919,977.75/1,381,001.67 = 387,946.26/x
  3. Step 3: Cross multiply
    919,977.75x = 1,381,001.67 × 387,946.26
  4. Step 4: Simplify right side
    919,977.75x = 535,754,432,930.25
  5. Step 5: Solve for x
    x = 535,754,432,930.25/919,977.75
  6. Step 6: Final answer
    x = 582,355.86

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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.