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Finding the Fourth Proportional to 610,807.62, 843,015.69 and 338,962.83

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Solution

The fourth proportional to 610,807.62, 843,015.69 and 338,962.83 is: 467,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,807.62 : 843,015.69 = 338,962.83 : x
  2. Step 2: Convert to fraction form
    610,807.62/843,015.69 = 338,962.83/x
  3. Step 3: Cross multiply
    610,807.62x = 843,015.69 × 338,962.83
  4. Step 4: Simplify right side
    610,807.62x = 285,750,984,016.80
  5. Step 5: Solve for x
    x = 285,750,984,016.80/610,807.62
  6. Step 6: Final answer
    x = 467,824.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.