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Finding the Fourth Proportional to 613,502.92, 920,392.62 and 187,076.44

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Solution

The fourth proportional to 613,502.92, 920,392.62 and 187,076.44 is: 280,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,502.92 : 920,392.62 = 187,076.44 : x
  2. Step 2: Convert to fraction form
    613,502.92/920,392.62 = 187,076.44/x
  3. Step 3: Cross multiply
    613,502.92x = 920,392.62 × 187,076.44
  4. Step 4: Simplify right side
    613,502.92x = 172,183,774,751.87
  5. Step 5: Solve for x
    x = 172,183,774,751.87/613,502.92
  6. Step 6: Final answer
    x = 280,656.81

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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.