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Finding the Fourth Proportional to 809,426.14, 1,116,978.73 and 446,842.20

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Solution

The fourth proportional to 809,426.14, 1,116,978.73 and 446,842.20 is: 616,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,426.14 : 1,116,978.73 = 446,842.20 : x
  2. Step 2: Convert to fraction form
    809,426.14/1,116,978.73 = 446,842.20/x
  3. Step 3: Cross multiply
    809,426.14x = 1,116,978.73 × 446,842.20
  4. Step 4: Simplify right side
    809,426.14x = 499,113,233,066.41
  5. Step 5: Solve for x
    x = 499,113,233,066.41/809,426.14
  6. Step 6: Final answer
    x = 616,626.04

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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.