Home / 886,790.88-1,223,771.39-478,892.68

Finding the Fourth Proportional to 886,790.88, 1,223,771.39 and 478,892.68

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Solution

The fourth proportional to 886,790.88, 1,223,771.39 and 478,892.68 is: 660,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,790.88 : 1,223,771.39 = 478,892.68 : x
  2. Step 2: Convert to fraction form
    886,790.88/1,223,771.39 = 478,892.68/x
  3. Step 3: Cross multiply
    886,790.88x = 1,223,771.39 × 478,892.68
  4. Step 4: Simplify right side
    886,790.88x = 586,055,158,269.96
  5. Step 5: Solve for x
    x = 586,055,158,269.96/886,790.88
  6. Step 6: Final answer
    x = 660,871.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.