Home / 831,463.07-1,246,806.88-431,996.45

Finding the Fourth Proportional to 831,463.07, 1,246,806.88 and 431,996.45

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Solution

The fourth proportional to 831,463.07, 1,246,806.88 and 431,996.45 is: 647,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,463.07 : 1,246,806.88 = 431,996.45 : x
  2. Step 2: Convert to fraction form
    831,463.07/1,246,806.88 = 431,996.45/x
  3. Step 3: Cross multiply
    831,463.07x = 1,246,806.88 × 431,996.45
  4. Step 4: Simplify right side
    831,463.07x = 538,616,145,995.58
  5. Step 5: Solve for x
    x = 538,616,145,995.58/831,463.07
  6. Step 6: Final answer
    x = 647,793.23

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Half scale
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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.