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Finding the Fourth Proportional to 491,813.80, 737,720.70 and 488,703.40

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Solution

The fourth proportional to 491,813.80, 737,720.70 and 488,703.40 is: 733,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,813.80 : 737,720.70 = 488,703.40 : x
  2. Step 2: Convert to fraction form
    491,813.80/737,720.70 = 488,703.40/x
  3. Step 3: Cross multiply
    491,813.80x = 737,720.70 × 488,703.40
  4. Step 4: Simplify right side
    491,813.80x = 360,526,614,340.38
  5. Step 5: Solve for x
    x = 360,526,614,340.38/491,813.80
  6. Step 6: Final answer
    x = 733,055.10

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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.