Home / 811,379.20-1,217,068.80-337,907.20

Finding the Fourth Proportional to 811,379.20, 1,217,068.80 and 337,907.20

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Solution

The fourth proportional to 811,379.20, 1,217,068.80 and 337,907.20 is: 506,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,379.20 : 1,217,068.80 = 337,907.20 : x
  2. Step 2: Convert to fraction form
    811,379.20/1,217,068.80 = 337,907.20/x
  3. Step 3: Cross multiply
    811,379.20x = 1,217,068.80 × 337,907.20
  4. Step 4: Simplify right side
    811,379.20x = 411,256,310,415.36
  5. Step 5: Solve for x
    x = 411,256,310,415.36/811,379.20
  6. Step 6: Final answer
    x = 506,860.80

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Similar ratio
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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.