Home / 821,692.80-1,232,755.20-260,726.40

Finding the Fourth Proportional to 821,692.80, 1,232,755.20 and 260,726.40

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Solution

The fourth proportional to 821,692.80, 1,232,755.20 and 260,726.40 is: 391,158.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,692.80 : 1,232,755.20 = 260,726.40 : x
  2. Step 2: Convert to fraction form
    821,692.80/1,232,755.20 = 260,726.40/x
  3. Step 3: Cross multiply
    821,692.80x = 1,232,755.20 × 260,726.40
  4. Step 4: Simplify right side
    821,692.80x = 321,411,825,377.28
  5. Step 5: Solve for x
    x = 321,411,825,377.28/821,692.80
  6. Step 6: Final answer
    x = 391,158.14

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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.