Home / 552,977.19-828,137.17-315,600.21

Finding the Fourth Proportional to 552,977.19, 828,137.17 and 315,600.21

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Solution

The fourth proportional to 552,977.19, 828,137.17 and 315,600.21 is: 472,642.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,977.19 : 828,137.17 = 315,600.21 : x
  2. Step 2: Convert to fraction form
    552,977.19/828,137.17 = 315,600.21/x
  3. Step 3: Cross multiply
    552,977.19x = 828,137.17 × 315,600.21
  4. Step 4: Simplify right side
    552,977.19x = 261,360,264,760.81
  5. Step 5: Solve for x
    x = 261,360,264,760.81/552,977.19
  6. Step 6: Final answer
    x = 472,642.04

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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.