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Finding the Fourth Proportional to 609,009.60, 912,989.52 and 293,031.84

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Solution

The fourth proportional to 609,009.60, 912,989.52 and 293,031.84 is: 439,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,009.60 : 912,989.52 = 293,031.84 : x
  2. Step 2: Convert to fraction form
    609,009.60/912,989.52 = 293,031.84/x
  3. Step 3: Cross multiply
    609,009.60x = 912,989.52 × 293,031.84
  4. Step 4: Simplify right side
    609,009.60x = 267,534,998,946.32
  5. Step 5: Solve for x
    x = 267,534,998,946.32/609,009.60
  6. Step 6: Final answer
    x = 439,295.21

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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.