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Finding the Fourth Proportional to 293,062.40, 439,593.60 and 285,286.40

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Solution

The fourth proportional to 293,062.40, 439,593.60 and 285,286.40 is: 427,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,062.40 : 439,593.60 = 285,286.40 : x
  2. Step 2: Convert to fraction form
    293,062.40/439,593.60 = 285,286.40/x
  3. Step 3: Cross multiply
    293,062.40x = 439,593.60 × 285,286.40
  4. Step 4: Simplify right side
    293,062.40x = 125,410,075,607.04
  5. Step 5: Solve for x
    x = 125,410,075,607.04/293,062.40
  6. Step 6: Final answer
    x = 427,929.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.