Home / 807,513.20-1,211,269.80-508,914.80

Finding the Fourth Proportional to 807,513.20, 1,211,269.80 and 508,914.80

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Solution

The fourth proportional to 807,513.20, 1,211,269.80 and 508,914.80 is: 763,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,513.20 : 1,211,269.80 = 508,914.80 : x
  2. Step 2: Convert to fraction form
    807,513.20/1,211,269.80 = 508,914.80/x
  3. Step 3: Cross multiply
    807,513.20x = 1,211,269.80 × 508,914.80
  4. Step 4: Simplify right side
    807,513.20x = 616,433,128,013.04
  5. Step 5: Solve for x
    x = 616,433,128,013.04/807,513.20
  6. Step 6: Final answer
    x = 763,372.20

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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.