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Finding the Fourth Proportional to 576,488.40, 795,479.40 and 321,850.32

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Solution

The fourth proportional to 576,488.40, 795,479.40 and 321,850.32 is: 444,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,488.40 : 795,479.40 = 321,850.32 : x
  2. Step 2: Convert to fraction form
    576,488.40/795,479.40 = 321,850.32/x
  3. Step 3: Cross multiply
    576,488.40x = 795,479.40 × 321,850.32
  4. Step 4: Simplify right side
    576,488.40x = 256,025,299,443.41
  5. Step 5: Solve for x
    x = 256,025,299,443.41/576,488.40
  6. Step 6: Final answer
    x = 444,111.80

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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.