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Finding the Fourth Proportional to 783,372, 1,081,097.10 and 443,949.60

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Solution

The fourth proportional to 783,372, 1,081,097.10 and 443,949.60 is: 612,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,372 : 1,081,097.10 = 443,949.60 : x
  2. Step 2: Convert to fraction form
    783,372/1,081,097.10 = 443,949.60/x
  3. Step 3: Cross multiply
    783,372x = 1,081,097.10 × 443,949.60
  4. Step 4: Simplify right side
    783,372x = 479,952,625,106.16
  5. Step 5: Solve for x
    x = 479,952,625,106.16/783,372
  6. Step 6: Final answer
    x = 612,675.24

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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.