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Finding the Fourth Proportional to 420,248.33, 627,094.74 and 374,958.39

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Solution

The fourth proportional to 420,248.33, 627,094.74 and 374,958.39 is: 559,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,248.33 : 627,094.74 = 374,958.39 : x
  2. Step 2: Convert to fraction form
    420,248.33/627,094.74 = 374,958.39/x
  3. Step 3: Cross multiply
    420,248.33x = 627,094.74 × 374,958.39
  4. Step 4: Simplify right side
    420,248.33x = 235,134,434,087.87
  5. Step 5: Solve for x
    x = 235,134,434,087.87/420,248.33
  6. Step 6: Final answer
    x = 559,513.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.