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Finding the Fourth Proportional to 576,009.90, 862,848.45 and 326,400.30

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Solution

The fourth proportional to 576,009.90, 862,848.45 and 326,400.30 is: 488,939.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,009.90 : 862,848.45 = 326,400.30 : x
  2. Step 2: Convert to fraction form
    576,009.90/862,848.45 = 326,400.30/x
  3. Step 3: Cross multiply
    576,009.90x = 862,848.45 × 326,400.30
  4. Step 4: Simplify right side
    576,009.90x = 281,633,992,934.54
  5. Step 5: Solve for x
    x = 281,633,992,934.54/576,009.90
  6. Step 6: Final answer
    x = 488,939.50

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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.