Home / 890,990.86-1,336,350.97-291,938.76

Finding the Fourth Proportional to 890,990.86, 1,336,350.97 and 291,938.76

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Solution

The fourth proportional to 890,990.86, 1,336,350.97 and 291,938.76 is: 437,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,990.86 : 1,336,350.97 = 291,938.76 : x
  2. Step 2: Convert to fraction form
    890,990.86/1,336,350.97 = 291,938.76/x
  3. Step 3: Cross multiply
    890,990.86x = 1,336,350.97 × 291,938.76
  4. Step 4: Simplify right side
    890,990.86x = 390,132,642,123.56
  5. Step 5: Solve for x
    x = 390,132,642,123.56/890,990.86
  6. Step 6: Final answer
    x = 437,863.80

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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.