Home / 666,119.46-919,222.10-379,731.82

Finding the Fourth Proportional to 666,119.46, 919,222.10 and 379,731.82

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Solution

The fourth proportional to 666,119.46, 919,222.10 and 379,731.82 is: 524,016.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,119.46 : 919,222.10 = 379,731.82 : x
  2. Step 2: Convert to fraction form
    666,119.46/919,222.10 = 379,731.82/x
  3. Step 3: Cross multiply
    666,119.46x = 919,222.10 × 379,731.82
  4. Step 4: Simplify right side
    666,119.46x = 349,057,881,017.22
  5. Step 5: Solve for x
    x = 349,057,881,017.22/666,119.46
  6. Step 6: Final answer
    x = 524,016.94

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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.