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Finding the Fourth Proportional to 576,454.40, 795,424.80 and 321,800

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Solution

The fourth proportional to 576,454.40, 795,424.80 and 321,800 is: 444,038.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,454.40 : 795,424.80 = 321,800 : x
  2. Step 2: Convert to fraction form
    576,454.40/795,424.80 = 321,800/x
  3. Step 3: Cross multiply
    576,454.40x = 795,424.80 × 321,800
  4. Step 4: Simplify right side
    576,454.40x = 255,967,700,640
  5. Step 5: Solve for x
    x = 255,967,700,640/576,454.40
  6. Step 6: Final answer
    x = 444,038.07

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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.