Home / 727,520.19-1,003,901.08-421,692.50

Finding the Fourth Proportional to 727,520.19, 1,003,901.08 and 421,692.50

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Solution

The fourth proportional to 727,520.19, 1,003,901.08 and 421,692.50 is: 581,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,520.19 : 1,003,901.08 = 421,692.50 : x
  2. Step 2: Convert to fraction form
    727,520.19/1,003,901.08 = 421,692.50/x
  3. Step 3: Cross multiply
    727,520.19x = 1,003,901.08 × 421,692.50
  4. Step 4: Simplify right side
    727,520.19x = 423,337,557,633.42
  5. Step 5: Solve for x
    x = 423,337,557,633.42/727,520.19
  6. Step 6: Final answer
    x = 581,891.15

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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.