Home / 628,649.23-942,313.61-308,357.61

Finding the Fourth Proportional to 628,649.23, 942,313.61 and 308,357.61

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Solution

The fourth proportional to 628,649.23, 942,313.61 and 308,357.61 is: 462,212.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,649.23 : 942,313.61 = 308,357.61 : x
  2. Step 2: Convert to fraction form
    628,649.23/942,313.61 = 308,357.61/x
  3. Step 3: Cross multiply
    628,649.23x = 942,313.61 × 308,357.61
  4. Step 4: Simplify right side
    628,649.23x = 290,569,572,650.07
  5. Step 5: Solve for x
    x = 290,569,572,650.07/628,649.23
  6. Step 6: Final answer
    x = 462,212.56

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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.