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Finding the Fourth Proportional to 631,518.54, 946,639.40 and 271,923.90

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Solution

The fourth proportional to 631,518.54, 946,639.40 and 271,923.90 is: 407,610.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,518.54 : 946,639.40 = 271,923.90 : x
  2. Step 2: Convert to fraction form
    631,518.54/946,639.40 = 271,923.90/x
  3. Step 3: Cross multiply
    631,518.54x = 946,639.40 × 271,923.90
  4. Step 4: Simplify right side
    631,518.54x = 257,413,877,541.66
  5. Step 5: Solve for x
    x = 257,413,877,541.66/631,518.54
  6. Step 6: Final answer
    x = 407,610.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.