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Finding the Fourth Proportional to 579,479.60, 867,145.80 and 529,713.20

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Solution

The fourth proportional to 579,479.60, 867,145.80 and 529,713.20 is: 792,674.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,479.60 : 867,145.80 = 529,713.20 : x
  2. Step 2: Convert to fraction form
    579,479.60/867,145.80 = 529,713.20/x
  3. Step 3: Cross multiply
    579,479.60x = 867,145.80 × 529,713.20
  4. Step 4: Simplify right side
    579,479.60x = 459,338,576,584.56
  5. Step 5: Solve for x
    x = 459,338,576,584.56/579,479.60
  6. Step 6: Final answer
    x = 792,674.28

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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.