Home / 746,945.55-1,118,942.10-409,382.10

Finding the Fourth Proportional to 746,945.55, 1,118,942.10 and 409,382.10

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Solution

The fourth proportional to 746,945.55, 1,118,942.10 and 409,382.10 is: 613,264.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,945.55 : 1,118,942.10 = 409,382.10 : x
  2. Step 2: Convert to fraction form
    746,945.55/1,118,942.10 = 409,382.10/x
  3. Step 3: Cross multiply
    746,945.55x = 1,118,942.10 × 409,382.10
  4. Step 4: Simplify right side
    746,945.55x = 458,074,866,676.41
  5. Step 5: Solve for x
    x = 458,074,866,676.41/746,945.55
  6. Step 6: Final answer
    x = 613,264.07

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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.