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Finding the Fourth Proportional to 603,434.34, 905,262.48 and 198,649.80

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Solution

The fourth proportional to 603,434.34, 905,262.48 and 198,649.80 is: 298,011.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,434.34 : 905,262.48 = 198,649.80 : x
  2. Step 2: Convert to fraction form
    603,434.34/905,262.48 = 198,649.80/x
  3. Step 3: Cross multiply
    603,434.34x = 905,262.48 × 198,649.80
  4. Step 4: Simplify right side
    603,434.34x = 179,830,210,599.50
  5. Step 5: Solve for x
    x = 179,830,210,599.50/603,434.34
  6. Step 6: Final answer
    x = 298,011.23

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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.