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Finding the Fourth Proportional to 585,417.60, 879,163.20 and 452,620.80

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Solution

The fourth proportional to 585,417.60, 879,163.20 and 452,620.80 is: 679,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,417.60 : 879,163.20 = 452,620.80 : x
  2. Step 2: Convert to fraction form
    585,417.60/879,163.20 = 452,620.80/x
  3. Step 3: Cross multiply
    585,417.60x = 879,163.20 × 452,620.80
  4. Step 4: Simplify right side
    585,417.60x = 397,927,550,914.56
  5. Step 5: Solve for x
    x = 397,927,550,914.56/585,417.60
  6. Step 6: Final answer
    x = 679,732.81

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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.