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Finding the Fourth Proportional to 604,911.60, 907,367.40 and 394,786.80

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Solution

The fourth proportional to 604,911.60, 907,367.40 and 394,786.80 is: 592,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,911.60 : 907,367.40 = 394,786.80 : x
  2. Step 2: Convert to fraction form
    604,911.60/907,367.40 = 394,786.80/x
  3. Step 3: Cross multiply
    604,911.60x = 907,367.40 × 394,786.80
  4. Step 4: Simplify right side
    604,911.60x = 358,216,672,270.32
  5. Step 5: Solve for x
    x = 358,216,672,270.32/604,911.60
  6. Step 6: Final answer
    x = 592,180.20

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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.