Home / 746,152.20-1,119,665.70-272,885.40

Finding the Fourth Proportional to 746,152.20, 1,119,665.70 and 272,885.40

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Solution

The fourth proportional to 746,152.20, 1,119,665.70 and 272,885.40 is: 409,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,152.20 : 1,119,665.70 = 272,885.40 : x
  2. Step 2: Convert to fraction form
    746,152.20/1,119,665.70 = 272,885.40/x
  3. Step 3: Cross multiply
    746,152.20x = 1,119,665.70 × 272,885.40
  4. Step 4: Simplify right side
    746,152.20x = 305,540,422,410.78
  5. Step 5: Solve for x
    x = 305,540,422,410.78/746,152.20
  6. Step 6: Final answer
    x = 409,488.07

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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.