Home / 728,717.40-1,093,076.10-374,423.40

Finding the Fourth Proportional to 728,717.40, 1,093,076.10 and 374,423.40

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Solution

The fourth proportional to 728,717.40, 1,093,076.10 and 374,423.40 is: 561,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,717.40 : 1,093,076.10 = 374,423.40 : x
  2. Step 2: Convert to fraction form
    728,717.40/1,093,076.10 = 374,423.40/x
  3. Step 3: Cross multiply
    728,717.40x = 1,093,076.10 × 374,423.40
  4. Step 4: Simplify right side
    728,717.40x = 409,273,269,820.74
  5. Step 5: Solve for x
    x = 409,273,269,820.74/728,717.40
  6. Step 6: Final answer
    x = 561,635.10

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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.