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Finding the Fourth Proportional to 552,521.20, 828,004.20 and 409,248.40

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Solution

The fourth proportional to 552,521.20, 828,004.20 and 409,248.40 is: 613,296.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,521.20 : 828,004.20 = 409,248.40 : x
  2. Step 2: Convert to fraction form
    552,521.20/828,004.20 = 409,248.40/x
  3. Step 3: Cross multiply
    552,521.20x = 828,004.20 × 409,248.40
  4. Step 4: Simplify right side
    552,521.20x = 338,859,394,043.28
  5. Step 5: Solve for x
    x = 338,859,394,043.28/552,521.20
  6. Step 6: Final answer
    x = 613,296.64

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1.5x scale

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.