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Finding the Fourth Proportional to 613,824.62, 847,120.50 and 372,117.38

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Solution

The fourth proportional to 613,824.62, 847,120.50 and 372,117.38 is: 513,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,824.62 : 847,120.50 = 372,117.38 : x
  2. Step 2: Convert to fraction form
    613,824.62/847,120.50 = 372,117.38/x
  3. Step 3: Cross multiply
    613,824.62x = 847,120.50 × 372,117.38
  4. Step 4: Simplify right side
    613,824.62x = 315,228,256,768.69
  5. Step 5: Solve for x
    x = 315,228,256,768.69/613,824.62
  6. Step 6: Final answer
    x = 513,547.76

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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.