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Finding the Fourth Proportional to 666,637.62, 919,953.02 and 360,707.27

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Solution

The fourth proportional to 666,637.62, 919,953.02 and 360,707.27 is: 497,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,637.62 : 919,953.02 = 360,707.27 : x
  2. Step 2: Convert to fraction form
    666,637.62/919,953.02 = 360,707.27/x
  3. Step 3: Cross multiply
    666,637.62x = 919,953.02 × 360,707.27
  4. Step 4: Simplify right side
    666,637.62x = 331,833,735,969.15
  5. Step 5: Solve for x
    x = 331,833,735,969.15/666,637.62
  6. Step 6: Final answer
    x = 497,772.29

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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.