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Finding the Fourth Proportional to 649,755.42, 896,696.11 and 374,154.21

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Solution

The fourth proportional to 649,755.42, 896,696.11 and 374,154.21 is: 516,352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,755.42 : 896,696.11 = 374,154.21 : x
  2. Step 2: Convert to fraction form
    649,755.42/896,696.11 = 374,154.21/x
  3. Step 3: Cross multiply
    649,755.42x = 896,696.11 × 374,154.21
  4. Step 4: Simplify right side
    649,755.42x = 335,502,624,647.12
  5. Step 5: Solve for x
    x = 335,502,624,647.12/649,755.42
  6. Step 6: Final answer
    x = 516,352.18

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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.