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Finding the Fourth Proportional to 553,511.80, 828,299.40 and 506,272.60

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Solution

The fourth proportional to 553,511.80, 828,299.40 and 506,272.60 is: 757,608.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,511.80 : 828,299.40 = 506,272.60 : x
  2. Step 2: Convert to fraction form
    553,511.80/828,299.40 = 506,272.60/x
  3. Step 3: Cross multiply
    553,511.80x = 828,299.40 × 506,272.60
  4. Step 4: Simplify right side
    553,511.80x = 419,345,290,816.44
  5. Step 5: Solve for x
    x = 419,345,290,816.44/553,511.80
  6. Step 6: Final answer
    x = 757,608.58

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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.