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Finding the Fourth Proportional to 576,246.40, 863,678.40 and 295,619.20

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Solution

The fourth proportional to 576,246.40, 863,678.40 and 295,619.20 is: 443,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,246.40 : 863,678.40 = 295,619.20 : x
  2. Step 2: Convert to fraction form
    576,246.40/863,678.40 = 295,619.20/x
  3. Step 3: Cross multiply
    576,246.40x = 863,678.40 × 295,619.20
  4. Step 4: Simplify right side
    576,246.40x = 255,319,917,665.28
  5. Step 5: Solve for x
    x = 255,319,917,665.28/576,246.40
  6. Step 6: Final answer
    x = 443,074.21

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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.