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Finding the Fourth Proportional to 553,524.16, 828,403.80 and 353,981.20

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Solution

The fourth proportional to 553,524.16, 828,403.80 and 353,981.20 is: 529,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,524.16 : 828,403.80 = 353,981.20 : x
  2. Step 2: Convert to fraction form
    553,524.16/828,403.80 = 353,981.20/x
  3. Step 3: Cross multiply
    553,524.16x = 828,403.80 × 353,981.20
  4. Step 4: Simplify right side
    553,524.16x = 293,239,371,208.56
  5. Step 5: Solve for x
    x = 293,239,371,208.56/553,524.16
  6. Step 6: Final answer
    x = 529,767.97

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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.