Home / 727,520.44-1,003,901.42-421,692.75

Finding the Fourth Proportional to 727,520.44, 1,003,901.42 and 421,692.75

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Solution

The fourth proportional to 727,520.44, 1,003,901.42 and 421,692.75 is: 581,891.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,520.44 : 1,003,901.42 = 421,692.75 : x
  2. Step 2: Convert to fraction form
    727,520.44/1,003,901.42 = 421,692.75/x
  3. Step 3: Cross multiply
    727,520.44x = 1,003,901.42 × 421,692.75
  4. Step 4: Simplify right side
    727,520.44x = 423,337,950,528.71
  5. Step 5: Solve for x
    x = 423,337,950,528.71/727,520.44
  6. Step 6: Final answer
    x = 581,891.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.