Home / 1,230,192.70-1,845,289.05-343,728.70

Finding the Fourth Proportional to 1,230,192.70, 1,845,289.05 and 343,728.70

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Solution

The fourth proportional to 1,230,192.70, 1,845,289.05 and 343,728.70 is: 515,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,192.70 : 1,845,289.05 = 343,728.70 : x
  2. Step 2: Convert to fraction form
    1,230,192.70/1,845,289.05 = 343,728.70/x
  3. Step 3: Cross multiply
    1,230,192.70x = 1,845,289.05 × 343,728.70
  4. Step 4: Simplify right side
    1,230,192.70x = 634,278,806,280.74
  5. Step 5: Solve for x
    x = 634,278,806,280.74/1,230,192.70
  6. Step 6: Final answer
    x = 515,593.05

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Double scale
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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.