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Finding the Fourth Proportional to 665,892.92, 918,932.20 and 364,086.92

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Solution

The fourth proportional to 665,892.92, 918,932.20 and 364,086.92 is: 502,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,892.92 : 918,932.20 = 364,086.92 : x
  2. Step 2: Convert to fraction form
    665,892.92/918,932.20 = 364,086.92/x
  3. Step 3: Cross multiply
    665,892.92x = 918,932.20 × 364,086.92
  4. Step 4: Simplify right side
    665,892.92x = 334,571,194,386.82
  5. Step 5: Solve for x
    x = 334,571,194,386.82/665,892.92
  6. Step 6: Final answer
    x = 502,439.93

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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.