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Finding the Fourth Proportional to 989,996, 1,366,194.48 and 537,287

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Solution

The fourth proportional to 989,996, 1,366,194.48 and 537,287 is: 741,456.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,996 : 1,366,194.48 = 537,287 : x
  2. Step 2: Convert to fraction form
    989,996/1,366,194.48 = 537,287/x
  3. Step 3: Cross multiply
    989,996x = 1,366,194.48 × 537,287
  4. Step 4: Simplify right side
    989,996x = 734,038,533,575.76
  5. Step 5: Solve for x
    x = 734,038,533,575.76/989,996
  6. Step 6: Final answer
    x = 741,456.06

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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.