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Finding the Fourth Proportional to 666,448.62, 919,696.30 and 360,524.23

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Solution

The fourth proportional to 666,448.62, 919,696.30 and 360,524.23 is: 497,521.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,448.62 : 919,696.30 = 360,524.23 : x
  2. Step 2: Convert to fraction form
    666,448.62/919,696.30 = 360,524.23/x
  3. Step 3: Cross multiply
    666,448.62x = 919,696.30 × 360,524.23
  4. Step 4: Simplify right side
    666,448.62x = 331,572,795,792.87
  5. Step 5: Solve for x
    x = 331,572,795,792.87/666,448.62
  6. Step 6: Final answer
    x = 497,521.92

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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.