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Finding the Fourth Proportional to 798,909.76, 1,102,489.76 and 436,333.60

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Solution

The fourth proportional to 798,909.76, 1,102,489.76 and 436,333.60 is: 602,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,909.76 : 1,102,489.76 = 436,333.60 : x
  2. Step 2: Convert to fraction form
    798,909.76/1,102,489.76 = 436,333.60/x
  3. Step 3: Cross multiply
    798,909.76x = 1,102,489.76 × 436,333.60
  4. Step 4: Simplify right side
    798,909.76x = 481,053,325,943.94
  5. Step 5: Solve for x
    x = 481,053,325,943.94/798,909.76
  6. Step 6: Final answer
    x = 602,137.25

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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.