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Finding the Fourth Proportional to 547,252.40, 820,878.60 and 509,927.60

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Solution

The fourth proportional to 547,252.40, 820,878.60 and 509,927.60 is: 764,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,252.40 : 820,878.60 = 509,927.60 : x
  2. Step 2: Convert to fraction form
    547,252.40/820,878.60 = 509,927.60/x
  3. Step 3: Cross multiply
    547,252.40x = 820,878.60 × 509,927.60
  4. Step 4: Simplify right side
    547,252.40x = 418,588,654,389.36
  5. Step 5: Solve for x
    x = 418,588,654,389.36/547,252.40
  6. Step 6: Final answer
    x = 764,891.40

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Double scale
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Similar ratio
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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.