Home / 920,074.67-1,269,614.00-678,487.31

Finding the Fourth Proportional to 920,074.67, 1,269,614.00 and 678,487.31

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Solution

The fourth proportional to 920,074.67, 1,269,614.00 and 678,487.31 is: 936,246.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,074.67 : 1,269,614.00 = 678,487.31 : x
  2. Step 2: Convert to fraction form
    920,074.67/1,269,614.00 = 678,487.31/x
  3. Step 3: Cross multiply
    920,074.67x = 1,269,614.00 × 678,487.31
  4. Step 4: Simplify right side
    920,074.67x = 861,416,977,857.83
  5. Step 5: Solve for x
    x = 861,416,977,857.83/920,074.67
  6. Step 6: Final answer
    x = 936,246.82

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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.