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Finding the Fourth Proportional to 503,740.12, 755,609.44 and 345,488.80

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Solution

The fourth proportional to 503,740.12, 755,609.44 and 345,488.80 is: 518,232.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,740.12 : 755,609.44 = 345,488.80 : x
  2. Step 2: Convert to fraction form
    503,740.12/755,609.44 = 345,488.80/x
  3. Step 3: Cross multiply
    503,740.12x = 755,609.44 × 345,488.80
  4. Step 4: Simplify right side
    503,740.12x = 261,054,598,694.27
  5. Step 5: Solve for x
    x = 261,054,598,694.27/503,740.12
  6. Step 6: Final answer
    x = 518,232.69

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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.