Home / 658,728.18-909,045.54-356,922.18

Finding the Fourth Proportional to 658,728.18, 909,045.54 and 356,922.18

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Solution

The fourth proportional to 658,728.18, 909,045.54 and 356,922.18 is: 492,552.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,728.18 : 909,045.54 = 356,922.18 : x
  2. Step 2: Convert to fraction form
    658,728.18/909,045.54 = 356,922.18/x
  3. Step 3: Cross multiply
    658,728.18x = 909,045.54 × 356,922.18
  4. Step 4: Simplify right side
    658,728.18x = 324,458,515,856.08
  5. Step 5: Solve for x
    x = 324,458,515,856.08/658,728.18
  6. Step 6: Final answer
    x = 492,552.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.