Home / 678,010.62-1,017,015.94-528,362.90

Finding the Fourth Proportional to 678,010.62, 1,017,015.94 and 528,362.90

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Solution

The fourth proportional to 678,010.62, 1,017,015.94 and 528,362.90 is: 792,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,010.62 : 1,017,015.94 = 528,362.90 : x
  2. Step 2: Convert to fraction form
    678,010.62/1,017,015.94 = 528,362.90/x
  3. Step 3: Cross multiply
    678,010.62x = 1,017,015.94 × 528,362.90
  4. Step 4: Simplify right side
    678,010.62x = 537,353,491,404.63
  5. Step 5: Solve for x
    x = 537,353,491,404.63/678,010.62
  6. Step 6: Final answer
    x = 792,544.36

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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.