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Finding the Fourth Proportional to 613,636, 920,465.52 and 170,415.52

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Solution

The fourth proportional to 613,636, 920,465.52 and 170,415.52 is: 255,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,636 : 920,465.52 = 170,415.52 : x
  2. Step 2: Convert to fraction form
    613,636/920,465.52 = 170,415.52/x
  3. Step 3: Cross multiply
    613,636x = 920,465.52 × 170,415.52
  4. Step 4: Simplify right side
    613,636x = 156,861,610,232.87
  5. Step 5: Solve for x
    x = 156,861,610,232.87/613,636
  6. Step 6: Final answer
    x = 255,626.48

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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.