Home / 921,067.56-1,380,440.34-493,543.08

Finding the Fourth Proportional to 921,067.56, 1,380,440.34 and 493,543.08

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Solution

The fourth proportional to 921,067.56, 1,380,440.34 and 493,543.08 is: 739,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,067.56 : 1,380,440.34 = 493,543.08 : x
  2. Step 2: Convert to fraction form
    921,067.56/1,380,440.34 = 493,543.08/x
  3. Step 3: Cross multiply
    921,067.56x = 1,380,440.34 × 493,543.08
  4. Step 4: Simplify right side
    921,067.56x = 681,306,777,159.85
  5. Step 5: Solve for x
    x = 681,306,777,159.85/921,067.56
  6. Step 6: Final answer
    x = 739,692.51

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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.