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Finding the Fourth Proportional to 403,224.88, 556,355.40 and 338,938.48

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Solution

The fourth proportional to 403,224.88, 556,355.40 and 338,938.48 is: 467,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,224.88 : 556,355.40 = 338,938.48 : x
  2. Step 2: Convert to fraction form
    403,224.88/556,355.40 = 338,938.48/x
  3. Step 3: Cross multiply
    403,224.88x = 556,355.40 × 338,938.48
  4. Step 4: Simplify right side
    403,224.88x = 188,570,253,615.79
  5. Step 5: Solve for x
    x = 188,570,253,615.79/403,224.88
  6. Step 6: Final answer
    x = 467,655.30

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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.