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Finding the Fourth Proportional to 420,247.83, 627,093.99 and 374,957.89

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Solution

The fourth proportional to 420,247.83, 627,093.99 and 374,957.89 is: 559,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,247.83 : 627,093.99 = 374,957.89 : x
  2. Step 2: Convert to fraction form
    420,247.83/627,093.99 = 374,957.89/x
  3. Step 3: Cross multiply
    420,247.83x = 627,093.99 × 374,957.89
  4. Step 4: Simplify right side
    420,247.83x = 235,133,839,322.08
  5. Step 5: Solve for x
    x = 235,133,839,322.08/420,247.83
  6. Step 6: Final answer
    x = 559,512.32

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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.