Home / 891,416.46-1,336,981.82-284,125.86

Finding the Fourth Proportional to 891,416.46, 1,336,981.82 and 284,125.86

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Solution

The fourth proportional to 891,416.46, 1,336,981.82 and 284,125.86 is: 426,143.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,416.46 : 1,336,981.82 = 284,125.86 : x
  2. Step 2: Convert to fraction form
    891,416.46/1,336,981.82 = 284,125.86/x
  3. Step 3: Cross multiply
    891,416.46x = 1,336,981.82 × 284,125.86
  4. Step 4: Simplify right side
    891,416.46x = 379,871,109,411.87
  5. Step 5: Solve for x
    x = 379,871,109,411.87/891,416.46
  6. Step 6: Final answer
    x = 426,143.25

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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.