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Finding the Fourth Proportional to 659,556.80, 988,168.80 and 559,246.40

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Solution

The fourth proportional to 659,556.80, 988,168.80 and 559,246.40 is: 837,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,556.80 : 988,168.80 = 559,246.40 : x
  2. Step 2: Convert to fraction form
    659,556.80/988,168.80 = 559,246.40/x
  3. Step 3: Cross multiply
    659,556.80x = 988,168.80 × 559,246.40
  4. Step 4: Simplify right side
    659,556.80x = 552,629,843,992.32
  5. Step 5: Solve for x
    x = 552,629,843,992.32/659,556.80
  6. Step 6: Final answer
    x = 837,880.59

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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.