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Finding the Fourth Proportional to 545,988.30, 818,982.45 and 488,907.60

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Solution

The fourth proportional to 545,988.30, 818,982.45 and 488,907.60 is: 733,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,988.30 : 818,982.45 = 488,907.60 : x
  2. Step 2: Convert to fraction form
    545,988.30/818,982.45 = 488,907.60/x
  3. Step 3: Cross multiply
    545,988.30x = 818,982.45 × 488,907.60
  4. Step 4: Simplify right side
    545,988.30x = 400,406,744,071.62
  5. Step 5: Solve for x
    x = 400,406,744,071.62/545,988.30
  6. Step 6: Final answer
    x = 733,361.40

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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.