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Finding the Fourth Proportional to 628,471.73, 942,709.54 and 155,157.14

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Solution

The fourth proportional to 628,471.73, 942,709.54 and 155,157.14 is: 232,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,471.73 : 942,709.54 = 155,157.14 : x
  2. Step 2: Convert to fraction form
    628,471.73/942,709.54 = 155,157.14/x
  3. Step 3: Cross multiply
    628,471.73x = 942,709.54 × 155,157.14
  4. Step 4: Simplify right side
    628,471.73x = 146,268,118,046.00
  5. Step 5: Solve for x
    x = 146,268,118,046.00/628,471.73
  6. Step 6: Final answer
    x = 232,736.19

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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.