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Finding the Fourth Proportional to 836,692.80, 1,253,656.80 and 712,276.80

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Solution

The fourth proportional to 836,692.80, 1,253,656.80 and 712,276.80 is: 1,067,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,692.80 : 1,253,656.80 = 712,276.80 : x
  2. Step 2: Convert to fraction form
    836,692.80/1,253,656.80 = 712,276.80/x
  3. Step 3: Cross multiply
    836,692.80x = 1,253,656.80 × 712,276.80
  4. Step 4: Simplify right side
    836,692.80x = 892,950,653,802.24
  5. Step 5: Solve for x
    x = 892,950,653,802.24/836,692.80
  6. Step 6: Final answer
    x = 1,067,238.36

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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.