Home / 687,806.02-949,201.95-381,882.44

Finding the Fourth Proportional to 687,806.02, 949,201.95 and 381,882.44

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Solution

The fourth proportional to 687,806.02, 949,201.95 and 381,882.44 is: 527,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,806.02 : 949,201.95 = 381,882.44 : x
  2. Step 2: Convert to fraction form
    687,806.02/949,201.95 = 381,882.44/x
  3. Step 3: Cross multiply
    687,806.02x = 949,201.95 × 381,882.44
  4. Step 4: Simplify right side
    687,806.02x = 362,483,556,718.76
  5. Step 5: Solve for x
    x = 362,483,556,718.76/687,806.02
  6. Step 6: Final answer
    x = 527,014.23

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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.