Home / 552,964.19-828,117.68-315,587.21

Finding the Fourth Proportional to 552,964.19, 828,117.68 and 315,587.21

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Solution

The fourth proportional to 552,964.19, 828,117.68 and 315,587.21 is: 472,622.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,964.19 : 828,117.68 = 315,587.21 : x
  2. Step 2: Convert to fraction form
    552,964.19/828,117.68 = 315,587.21/x
  3. Step 3: Cross multiply
    552,964.19x = 828,117.68 × 315,587.21
  4. Step 4: Simplify right side
    552,964.19x = 261,343,342,464.35
  5. Step 5: Solve for x
    x = 261,343,342,464.35/552,964.19
  6. Step 6: Final answer
    x = 472,622.55

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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.