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Finding the Fourth Proportional to 607,893.20, 910,527.60 and 395,316.80

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Solution

The fourth proportional to 607,893.20, 910,527.60 and 395,316.80 is: 592,121.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,893.20 : 910,527.60 = 395,316.80 : x
  2. Step 2: Convert to fraction form
    607,893.20/910,527.60 = 395,316.80/x
  3. Step 3: Cross multiply
    607,893.20x = 910,527.60 × 395,316.80
  4. Step 4: Simplify right side
    607,893.20x = 359,946,857,143.68
  5. Step 5: Solve for x
    x = 359,946,857,143.68/607,893.20
  6. Step 6: Final answer
    x = 592,121.87

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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.