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Finding the Fourth Proportional to 613,064.15, 919,585.59 and 275,866.21

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Solution

The fourth proportional to 613,064.15, 919,585.59 and 275,866.21 is: 413,794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,064.15 : 919,585.59 = 275,866.21 : x
  2. Step 2: Convert to fraction form
    613,064.15/919,585.59 = 275,866.21/x
  3. Step 3: Cross multiply
    613,064.15x = 919,585.59 × 275,866.21
  4. Step 4: Simplify right side
    613,064.15x = 253,682,591,483.91
  5. Step 5: Solve for x
    x = 253,682,591,483.91/613,064.15
  6. Step 6: Final answer
    x = 413,794.53

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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.