Home / 920,108.72-1,380,181.54-246,188.95

Finding the Fourth Proportional to 920,108.72, 1,380,181.54 and 246,188.95

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Solution

The fourth proportional to 920,108.72, 1,380,181.54 and 246,188.95 is: 369,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,108.72 : 1,380,181.54 = 246,188.95 : x
  2. Step 2: Convert to fraction form
    920,108.72/1,380,181.54 = 246,188.95/x
  3. Step 3: Cross multiply
    920,108.72x = 1,380,181.54 × 246,188.95
  4. Step 4: Simplify right side
    920,108.72x = 339,785,444,141.98
  5. Step 5: Solve for x
    x = 339,785,444,141.98/920,108.72
  6. Step 6: Final answer
    x = 369,288.36

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Half scale
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Double scale
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Similar ratio
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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.