Home / 628,446.10-942,656.38-155,135.56

Finding the Fourth Proportional to 628,446.10, 942,656.38 and 155,135.56

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Solution

The fourth proportional to 628,446.10, 942,656.38 and 155,135.56 is: 232,700.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,446.10 : 942,656.38 = 155,135.56 : x
  2. Step 2: Convert to fraction form
    628,446.10/942,656.38 = 155,135.56/x
  3. Step 3: Cross multiply
    628,446.10x = 942,656.38 × 155,135.56
  4. Step 4: Simplify right side
    628,446.10x = 146,239,525,398.87
  5. Step 5: Solve for x
    x = 146,239,525,398.87/628,446.10
  6. Step 6: Final answer
    x = 232,700.19

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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.