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Finding the Fourth Proportional to 420,242.51, 627,086.07 and 374,952.51

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Solution

The fourth proportional to 420,242.51, 627,086.07 and 374,952.51 is: 559,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,242.51 : 627,086.07 = 374,952.51 : x
  2. Step 2: Convert to fraction form
    420,242.51/627,086.07 = 374,952.51/x
  3. Step 3: Cross multiply
    420,242.51x = 627,086.07 × 374,952.51
  4. Step 4: Simplify right side
    420,242.51x = 235,127,495,932.54
  5. Step 5: Solve for x
    x = 235,127,495,932.54/420,242.51
  6. Step 6: Final answer
    x = 559,504.31

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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.