Home / 628,471.16-942,708.70-155,156.56

Finding the Fourth Proportional to 628,471.16, 942,708.70 and 155,156.56

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Solution

The fourth proportional to 628,471.16, 942,708.70 and 155,156.56 is: 232,735.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,471.16 : 942,708.70 = 155,156.56 : x
  2. Step 2: Convert to fraction form
    628,471.16/942,708.70 = 155,156.56/x
  3. Step 3: Cross multiply
    628,471.16x = 942,708.70 × 155,156.56
  4. Step 4: Simplify right side
    628,471.16x = 146,267,438,974.07
  5. Step 5: Solve for x
    x = 146,267,438,974.07/628,471.16
  6. Step 6: Final answer
    x = 232,735.32

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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.