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Finding the Fourth Proportional to 666,529.65, 919,817.52 and 360,612.61

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Solution

The fourth proportional to 666,529.65, 919,817.52 and 360,612.61 is: 497,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,529.65 : 919,817.52 = 360,612.61 : x
  2. Step 2: Convert to fraction form
    666,529.65/919,817.52 = 360,612.61/x
  3. Step 3: Cross multiply
    666,529.65x = 919,817.52 × 360,612.61
  4. Step 4: Simplify right side
    666,529.65x = 331,697,792,705.52
  5. Step 5: Solve for x
    x = 331,697,792,705.52/666,529.65
  6. Step 6: Final answer
    x = 497,648.96

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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.