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Finding the Fourth Proportional to 609,006.60, 912,985.02 and 293,028.84

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Solution

The fourth proportional to 609,006.60, 912,985.02 and 293,028.84 is: 439,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,006.60 : 912,985.02 = 293,028.84 : x
  2. Step 2: Convert to fraction form
    609,006.60/912,985.02 = 293,028.84/x
  3. Step 3: Cross multiply
    609,006.60x = 912,985.02 × 293,028.84
  4. Step 4: Simplify right side
    609,006.60x = 267,530,941,347.98
  5. Step 5: Solve for x
    x = 267,530,941,347.98/609,006.60
  6. Step 6: Final answer
    x = 439,290.71

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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.