Home / 914,401.20-1,371,601.80-323,425.20

Finding the Fourth Proportional to 914,401.20, 1,371,601.80 and 323,425.20

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Solution

The fourth proportional to 914,401.20, 1,371,601.80 and 323,425.20 is: 485,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,401.20 : 1,371,601.80 = 323,425.20 : x
  2. Step 2: Convert to fraction form
    914,401.20/1,371,601.80 = 323,425.20/x
  3. Step 3: Cross multiply
    914,401.20x = 1,371,601.80 × 323,425.20
  4. Step 4: Simplify right side
    914,401.20x = 443,610,586,485.36
  5. Step 5: Solve for x
    x = 443,610,586,485.36/914,401.20
  6. Step 6: Final answer
    x = 485,137.80

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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.