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Finding the Fourth Proportional to 520,044.10, 780,152.55 and 204,511.30

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Solution

The fourth proportional to 520,044.10, 780,152.55 and 204,511.30 is: 306,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,044.10 : 780,152.55 = 204,511.30 : x
  2. Step 2: Convert to fraction form
    520,044.10/780,152.55 = 204,511.30/x
  3. Step 3: Cross multiply
    520,044.10x = 780,152.55 × 204,511.30
  4. Step 4: Simplify right side
    520,044.10x = 159,550,012,198.82
  5. Step 5: Solve for x
    x = 159,550,012,198.82/520,044.10
  6. Step 6: Final answer
    x = 306,800.93

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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.