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Finding the Fourth Proportional to 666,914.96, 920,342.28 and 365,108.96

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Solution

The fourth proportional to 666,914.96, 920,342.28 and 365,108.96 is: 503,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,914.96 : 920,342.28 = 365,108.96 : x
  2. Step 2: Convert to fraction form
    666,914.96/920,342.28 = 365,108.96/x
  3. Step 3: Cross multiply
    666,914.96x = 920,342.28 × 365,108.96
  4. Step 4: Simplify right side
    666,914.96x = 336,025,212,694.83
  5. Step 5: Solve for x
    x = 336,025,212,694.83/666,914.96
  6. Step 6: Final answer
    x = 503,850.17

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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.