Home / 761,221.52-1,050,471.24-421,692.56

Finding the Fourth Proportional to 761,221.52, 1,050,471.24 and 421,692.56

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Solution

The fourth proportional to 761,221.52, 1,050,471.24 and 421,692.56 is: 581,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,221.52 : 1,050,471.24 = 421,692.56 : x
  2. Step 2: Convert to fraction form
    761,221.52/1,050,471.24 = 421,692.56/x
  3. Step 3: Cross multiply
    761,221.52x = 1,050,471.24 × 421,692.56
  4. Step 4: Simplify right side
    761,221.52x = 442,975,906,401.97
  5. Step 5: Solve for x
    x = 442,975,906,401.97/761,221.52
  6. Step 6: Final answer
    x = 581,927.72

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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.