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Finding the Fourth Proportional to 450,480.96, 621,733.73 and 256,889.14

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Solution

The fourth proportional to 450,480.96, 621,733.73 and 256,889.14 is: 354,546.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,480.96 : 621,733.73 = 256,889.14 : x
  2. Step 2: Convert to fraction form
    450,480.96/621,733.73 = 256,889.14/x
  3. Step 3: Cross multiply
    450,480.96x = 621,733.73 × 256,889.14
  4. Step 4: Simplify right side
    450,480.96x = 159,716,640,369.91
  5. Step 5: Solve for x
    x = 159,716,640,369.91/450,480.96
  6. Step 6: Final answer
    x = 354,546.93

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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.