Home / 394,819.80-592,271.19-128,601.06

Finding the Fourth Proportional to 394,819.80, 592,271.19 and 128,601.06

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Solution

The fourth proportional to 394,819.80, 592,271.19 and 128,601.06 is: 192,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,819.80 : 592,271.19 = 128,601.06 : x
  2. Step 2: Convert to fraction form
    394,819.80/592,271.19 = 128,601.06/x
  3. Step 3: Cross multiply
    394,819.80x = 592,271.19 × 128,601.06
  4. Step 4: Simplify right side
    394,819.80x = 76,166,702,841.46
  5. Step 5: Solve for x
    x = 76,166,702,841.46/394,819.80
  6. Step 6: Final answer
    x = 192,915.10

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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.