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Finding the Fourth Proportional to 491,703.40, 737,555.10 and 342,404.20

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Solution

The fourth proportional to 491,703.40, 737,555.10 and 342,404.20 is: 513,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,703.40 : 737,555.10 = 342,404.20 : x
  2. Step 2: Convert to fraction form
    491,703.40/737,555.10 = 342,404.20/x
  3. Step 3: Cross multiply
    491,703.40x = 737,555.10 × 342,404.20
  4. Step 4: Simplify right side
    491,703.40x = 252,541,963,971.42
  5. Step 5: Solve for x
    x = 252,541,963,971.42/491,703.40
  6. Step 6: Final answer
    x = 513,606.30

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1.5x scale

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.