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Finding the Fourth Proportional to 548,339.28, 756,392.76 and 321,941.04

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Solution

The fourth proportional to 548,339.28, 756,392.76 and 321,941.04 is: 444,093.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,339.28 : 756,392.76 = 321,941.04 : x
  2. Step 2: Convert to fraction form
    548,339.28/756,392.76 = 321,941.04/x
  3. Step 3: Cross multiply
    548,339.28x = 756,392.76 × 321,941.04
  4. Step 4: Simplify right side
    548,339.28x = 243,513,871,802.87
  5. Step 5: Solve for x
    x = 243,513,871,802.87/548,339.28
  6. Step 6: Final answer
    x = 444,093.43

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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.