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Finding the Fourth Proportional to 617,451, 925,913.79 and 380,730.12

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Solution

The fourth proportional to 617,451, 925,913.79 and 380,730.12 is: 570,933.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,451 : 925,913.79 = 380,730.12 : x
  2. Step 2: Convert to fraction form
    617,451/925,913.79 = 380,730.12/x
  3. Step 3: Cross multiply
    617,451x = 925,913.79 × 380,730.12
  4. Step 4: Simplify right side
    617,451x = 352,523,268,376.36
  5. Step 5: Solve for x
    x = 352,523,268,376.36/617,451
  6. Step 6: Final answer
    x = 570,933.19

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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.