Home / 687,806.07-949,202.02-381,882.47

Finding the Fourth Proportional to 687,806.07, 949,202.02 and 381,882.47

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Solution

The fourth proportional to 687,806.07, 949,202.02 and 381,882.47 is: 527,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,806.07 : 949,202.02 = 381,882.47 : x
  2. Step 2: Convert to fraction form
    687,806.07/949,202.02 = 381,882.47/x
  3. Step 3: Cross multiply
    687,806.07x = 949,202.02 × 381,882.47
  4. Step 4: Simplify right side
    687,806.07x = 362,483,611,926.59
  5. Step 5: Solve for x
    x = 362,483,611,926.59/687,806.07
  6. Step 6: Final answer
    x = 527,014.27

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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.