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Finding the Fourth Proportional to 450,362.33, 621,494.38 and 256,763.87

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Solution

The fourth proportional to 450,362.33, 621,494.38 and 256,763.87 is: 354,330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,362.33 : 621,494.38 = 256,763.87 : x
  2. Step 2: Convert to fraction form
    450,362.33/621,494.38 = 256,763.87/x
  3. Step 3: Cross multiply
    450,362.33x = 621,494.38 × 256,763.87
  4. Step 4: Simplify right side
    450,362.33x = 159,577,305,593.12
  5. Step 5: Solve for x
    x = 159,577,305,593.12/450,362.33
  6. Step 6: Final answer
    x = 354,330.94

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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.