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Finding the Fourth Proportional to 496,740, 685,501.20 and 270,387.12

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Solution

The fourth proportional to 496,740, 685,501.20 and 270,387.12 is: 373,134.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,740 : 685,501.20 = 270,387.12 : x
  2. Step 2: Convert to fraction form
    496,740/685,501.20 = 270,387.12/x
  3. Step 3: Cross multiply
    496,740x = 685,501.20 × 270,387.12
  4. Step 4: Simplify right side
    496,740x = 185,350,695,224.54
  5. Step 5: Solve for x
    x = 185,350,695,224.54/496,740
  6. Step 6: Final answer
    x = 373,134.23

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1.5x scale

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.