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Finding the Fourth Proportional to 990,243, 1,366,536.96 and 537,534

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Solution

The fourth proportional to 990,243, 1,366,536.96 and 537,534 is: 741,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,243 : 1,366,536.96 = 537,534 : x
  2. Step 2: Convert to fraction form
    990,243/1,366,536.96 = 537,534/x
  3. Step 3: Cross multiply
    990,243x = 1,366,536.96 × 537,534
  4. Step 4: Simplify right side
    990,243x = 734,560,078,256.64
  5. Step 5: Solve for x
    x = 734,560,078,256.64/990,243
  6. Step 6: Final answer
    x = 741,797.80

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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.