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Finding the Fourth Proportional to 576,749.94, 864,924.54 and 320,972.82

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Solution

The fourth proportional to 576,749.94, 864,924.54 and 320,972.82 is: 481,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,749.94 : 864,924.54 = 320,972.82 : x
  2. Step 2: Convert to fraction form
    576,749.94/864,924.54 = 320,972.82/x
  3. Step 3: Cross multiply
    576,749.94x = 864,924.54 × 320,972.82
  4. Step 4: Simplify right side
    576,749.94x = 277,617,268,691.00
  5. Step 5: Solve for x
    x = 277,617,268,691.00/576,749.94
  6. Step 6: Final answer
    x = 481,347.72

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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.