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Finding the Fourth Proportional to 552,099.20, 828,148.80 and 518,856.80

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Solution

The fourth proportional to 552,099.20, 828,148.80 and 518,856.80 is: 778,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,099.20 : 828,148.80 = 518,856.80 : x
  2. Step 2: Convert to fraction form
    552,099.20/828,148.80 = 518,856.80/x
  3. Step 3: Cross multiply
    552,099.20x = 828,148.80 × 518,856.80
  4. Step 4: Simplify right side
    552,099.20x = 429,690,636,291.84
  5. Step 5: Solve for x
    x = 429,690,636,291.84/552,099.20
  6. Step 6: Final answer
    x = 778,285.20

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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.