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Finding the Fourth Proportional to 579,969.60, 869,954.40 and 523,982.40

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Solution

The fourth proportional to 579,969.60, 869,954.40 and 523,982.40 is: 785,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,969.60 : 869,954.40 = 523,982.40 : x
  2. Step 2: Convert to fraction form
    579,969.60/869,954.40 = 523,982.40/x
  3. Step 3: Cross multiply
    579,969.60x = 869,954.40 × 523,982.40
  4. Step 4: Simplify right side
    579,969.60x = 455,840,794,402.56
  5. Step 5: Solve for x
    x = 455,840,794,402.56/579,969.60
  6. Step 6: Final answer
    x = 785,973.60

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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.