Home / 724,821.09-1,086,751.76-345,800.33

Finding the Fourth Proportional to 724,821.09, 1,086,751.76 and 345,800.33

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Solution

The fourth proportional to 724,821.09, 1,086,751.76 and 345,800.33 is: 518,471.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,821.09 : 1,086,751.76 = 345,800.33 : x
  2. Step 2: Convert to fraction form
    724,821.09/1,086,751.76 = 345,800.33/x
  3. Step 3: Cross multiply
    724,821.09x = 1,086,751.76 × 345,800.33
  4. Step 4: Simplify right side
    724,821.09x = 375,799,110,073.32
  5. Step 5: Solve for x
    x = 375,799,110,073.32/724,821.09
  6. Step 6: Final answer
    x = 518,471.54

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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.