Home / 649,476.35-896,249.17-355,120.67

Finding the Fourth Proportional to 649,476.35, 896,249.17 and 355,120.67

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Solution

The fourth proportional to 649,476.35, 896,249.17 and 355,120.67 is: 490,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,476.35 : 896,249.17 = 355,120.67 : x
  2. Step 2: Convert to fraction form
    649,476.35/896,249.17 = 355,120.67/x
  3. Step 3: Cross multiply
    649,476.35x = 896,249.17 × 355,120.67
  4. Step 4: Simplify right side
    649,476.35x = 318,276,611,061.48
  5. Step 5: Solve for x
    x = 318,276,611,061.48/649,476.35
  6. Step 6: Final answer
    x = 490,051.12

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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.