Home / 857,091.27-1,284,508.94-478,190.41

Finding the Fourth Proportional to 857,091.27, 1,284,508.94 and 478,190.41

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Solution

The fourth proportional to 857,091.27, 1,284,508.94 and 478,190.41 is: 716,656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,091.27 : 1,284,508.94 = 478,190.41 : x
  2. Step 2: Convert to fraction form
    857,091.27/1,284,508.94 = 478,190.41/x
  3. Step 3: Cross multiply
    857,091.27x = 1,284,508.94 × 478,190.41
  4. Step 4: Simplify right side
    857,091.27x = 614,239,854,677.72
  5. Step 5: Solve for x
    x = 614,239,854,677.72/857,091.27
  6. Step 6: Final answer
    x = 716,656.29

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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.