Home / 921,188.91-1,381,783.38-359,829.75

Finding the Fourth Proportional to 921,188.91, 1,381,783.38 and 359,829.75

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Solution

The fourth proportional to 921,188.91, 1,381,783.38 and 359,829.75 is: 539,744.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,188.91 : 1,381,783.38 = 359,829.75 : x
  2. Step 2: Convert to fraction form
    921,188.91/1,381,783.38 = 359,829.75/x
  3. Step 3: Cross multiply
    921,188.91x = 1,381,783.38 × 359,829.75
  4. Step 4: Simplify right side
    921,188.91x = 497,206,768,179.56
  5. Step 5: Solve for x
    x = 497,206,768,179.56/921,188.91
  6. Step 6: Final answer
    x = 539,744.63

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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.