Home / 724,457.97-1,086,243.89-345,494.61

Finding the Fourth Proportional to 724,457.97, 1,086,243.89 and 345,494.61

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Solution

The fourth proportional to 724,457.97, 1,086,243.89 and 345,494.61 is: 518,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,457.97 : 1,086,243.89 = 345,494.61 : x
  2. Step 2: Convert to fraction form
    724,457.97/1,086,243.89 = 345,494.61/x
  3. Step 3: Cross multiply
    724,457.97x = 1,086,243.89 × 345,494.61
  4. Step 4: Simplify right side
    724,457.97x = 375,291,407,412.96
  5. Step 5: Solve for x
    x = 375,291,407,412.96/724,457.97
  6. Step 6: Final answer
    x = 518,030.61

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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.