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Finding the Fourth Proportional to 548,242.49, 756,345.44 and 427,173.59

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Solution

The fourth proportional to 548,242.49, 756,345.44 and 427,173.59 is: 589,320.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,242.49 : 756,345.44 = 427,173.59 : x
  2. Step 2: Convert to fraction form
    548,242.49/756,345.44 = 427,173.59/x
  3. Step 3: Cross multiply
    548,242.49x = 756,345.44 × 427,173.59
  4. Step 4: Simplify right side
    548,242.49x = 323,090,799,843.73
  5. Step 5: Solve for x
    x = 323,090,799,843.73/548,242.49
  6. Step 6: Final answer
    x = 589,320.97

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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.