Home / 804,977.90-1,207,466.85-521,542.70

Finding the Fourth Proportional to 804,977.90, 1,207,466.85 and 521,542.70

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Solution

The fourth proportional to 804,977.90, 1,207,466.85 and 521,542.70 is: 782,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,977.90 : 1,207,466.85 = 521,542.70 : x
  2. Step 2: Convert to fraction form
    804,977.90/1,207,466.85 = 521,542.70/x
  3. Step 3: Cross multiply
    804,977.90x = 1,207,466.85 × 521,542.70
  4. Step 4: Simplify right side
    804,977.90x = 629,745,521,109.50
  5. Step 5: Solve for x
    x = 629,745,521,109.50/804,977.90
  6. Step 6: Final answer
    x = 782,314.05

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Similar ratio
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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.