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Finding the Fourth Proportional to 617,786.76, 852,647.73 and 424,035.30

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Solution

The fourth proportional to 617,786.76, 852,647.73 and 424,035.30 is: 585,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,786.76 : 852,647.73 = 424,035.30 : x
  2. Step 2: Convert to fraction form
    617,786.76/852,647.73 = 424,035.30/x
  3. Step 3: Cross multiply
    617,786.76x = 852,647.73 × 424,035.30
  4. Step 4: Simplify right side
    617,786.76x = 361,552,735,984.87
  5. Step 5: Solve for x
    x = 361,552,735,984.87/617,786.76
  6. Step 6: Final answer
    x = 585,238.73

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Double scale
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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.