Home / 489,861.06-676,082.06-298,985.37

Finding the Fourth Proportional to 489,861.06, 676,082.06 and 298,985.37

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Solution

The fourth proportional to 489,861.06, 676,082.06 and 298,985.37 is: 412,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,861.06 : 676,082.06 = 298,985.37 : x
  2. Step 2: Convert to fraction form
    489,861.06/676,082.06 = 298,985.37/x
  3. Step 3: Cross multiply
    489,861.06x = 676,082.06 × 298,985.37
  4. Step 4: Simplify right side
    489,861.06x = 202,138,644,859.46
  5. Step 5: Solve for x
    x = 202,138,644,859.46/489,861.06
  6. Step 6: Final answer
    x = 412,644.85

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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.