Home / 654,848.20-982,272.30-339,401.80

Finding the Fourth Proportional to 654,848.20, 982,272.30 and 339,401.80

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Solution

The fourth proportional to 654,848.20, 982,272.30 and 339,401.80 is: 509,102.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,848.20 : 982,272.30 = 339,401.80 : x
  2. Step 2: Convert to fraction form
    654,848.20/982,272.30 = 339,401.80/x
  3. Step 3: Cross multiply
    654,848.20x = 982,272.30 × 339,401.80
  4. Step 4: Simplify right side
    654,848.20x = 333,384,986,710.14
  5. Step 5: Solve for x
    x = 333,384,986,710.14/654,848.20
  6. Step 6: Final answer
    x = 509,102.70

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Double scale
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Similar ratio
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1.5x scale

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.