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Finding the Fourth Proportional to 551,927.70, 827,891.55 and 509,937.30

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Solution

The fourth proportional to 551,927.70, 827,891.55 and 509,937.30 is: 764,905.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,927.70 : 827,891.55 = 509,937.30 : x
  2. Step 2: Convert to fraction form
    551,927.70/827,891.55 = 509,937.30/x
  3. Step 3: Cross multiply
    551,927.70x = 827,891.55 × 509,937.30
  4. Step 4: Simplify right side
    551,927.70x = 422,172,781,699.82
  5. Step 5: Solve for x
    x = 422,172,781,699.82/551,927.70
  6. Step 6: Final answer
    x = 764,905.95

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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.