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Finding the Fourth Proportional to 540,975.40, 811,463.10 and 482,914.60

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Solution

The fourth proportional to 540,975.40, 811,463.10 and 482,914.60 is: 724,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,975.40 : 811,463.10 = 482,914.60 : x
  2. Step 2: Convert to fraction form
    540,975.40/811,463.10 = 482,914.60/x
  3. Step 3: Cross multiply
    540,975.40x = 811,463.10 × 482,914.60
  4. Step 4: Simplify right side
    540,975.40x = 391,867,378,351.26
  5. Step 5: Solve for x
    x = 391,867,378,351.26/540,975.40
  6. Step 6: Final answer
    x = 724,371.90

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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.