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Finding the Fourth Proportional to 450,960.66, 622,026.65 and 290,019.33

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Solution

The fourth proportional to 450,960.66, 622,026.65 and 290,019.33 is: 400,034.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,960.66 : 622,026.65 = 290,019.33 : x
  2. Step 2: Convert to fraction form
    450,960.66/622,026.65 = 290,019.33/x
  3. Step 3: Cross multiply
    450,960.66x = 622,026.65 × 290,019.33
  4. Step 4: Simplify right side
    450,960.66x = 180,399,753,000.19
  5. Step 5: Solve for x
    x = 180,399,753,000.19/450,960.66
  6. Step 6: Final answer
    x = 400,034.35

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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.