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Finding the Fourth Proportional to 658,150.72, 908,256.80 and 399,954.24

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Solution

The fourth proportional to 658,150.72, 908,256.80 and 399,954.24 is: 551,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,150.72 : 908,256.80 = 399,954.24 : x
  2. Step 2: Convert to fraction form
    658,150.72/908,256.80 = 399,954.24/x
  3. Step 3: Cross multiply
    658,150.72x = 908,256.80 × 399,954.24
  4. Step 4: Simplify right side
    658,150.72x = 363,261,158,168.83
  5. Step 5: Solve for x
    x = 363,261,158,168.83/658,150.72
  6. Step 6: Final answer
    x = 551,942.20

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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.