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Finding the Fourth Proportional to 680,492.86, 939,044.34 and 374,510.75

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Solution

The fourth proportional to 680,492.86, 939,044.34 and 374,510.75 is: 516,805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,492.86 : 939,044.34 = 374,510.75 : x
  2. Step 2: Convert to fraction form
    680,492.86/939,044.34 = 374,510.75/x
  3. Step 3: Cross multiply
    680,492.86x = 939,044.34 × 374,510.75
  4. Step 4: Simplify right side
    680,492.86x = 351,682,195,361.43
  5. Step 5: Solve for x
    x = 351,682,195,361.43/680,492.86
  6. Step 6: Final answer
    x = 516,805.12

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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.