Home / 815,733.40-1,223,600.10-343,341.40

Finding the Fourth Proportional to 815,733.40, 1,223,600.10 and 343,341.40

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Solution

The fourth proportional to 815,733.40, 1,223,600.10 and 343,341.40 is: 515,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,733.40 : 1,223,600.10 = 343,341.40 : x
  2. Step 2: Convert to fraction form
    815,733.40/1,223,600.10 = 343,341.40/x
  3. Step 3: Cross multiply
    815,733.40x = 1,223,600.10 × 343,341.40
  4. Step 4: Simplify right side
    815,733.40x = 420,112,571,374.14
  5. Step 5: Solve for x
    x = 420,112,571,374.14/815,733.40
  6. Step 6: Final answer
    x = 515,012.10

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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.