Home / 666,197.74-919,441.84-375,868.90

Finding the Fourth Proportional to 666,197.74, 919,441.84 and 375,868.90

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Solution

The fourth proportional to 666,197.74, 919,441.84 and 375,868.90 is: 518,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,197.74 : 919,441.84 = 375,868.90 : x
  2. Step 2: Convert to fraction form
    666,197.74/919,441.84 = 375,868.90/x
  3. Step 3: Cross multiply
    666,197.74x = 919,441.84 × 375,868.90
  4. Step 4: Simplify right side
    666,197.74x = 345,589,593,014.78
  5. Step 5: Solve for x
    x = 345,589,593,014.78/666,197.74
  6. Step 6: Final answer
    x = 518,749.27

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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.