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Finding the Fourth Proportional to 613,638, 920,468.52 and 170,417.52

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Solution

The fourth proportional to 613,638, 920,468.52 and 170,417.52 is: 255,629.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,638 : 920,468.52 = 170,417.52 : x
  2. Step 2: Convert to fraction form
    613,638/920,468.52 = 170,417.52/x
  3. Step 3: Cross multiply
    613,638x = 920,468.52 × 170,417.52
  4. Step 4: Simplify right side
    613,638x = 156,863,962,416.47
  5. Step 5: Solve for x
    x = 156,863,962,416.47/613,638
  6. Step 6: Final answer
    x = 255,629.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.