Home / 648,121.20-972,181.80-559,474.80

Finding the Fourth Proportional to 648,121.20, 972,181.80 and 559,474.80

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Solution

The fourth proportional to 648,121.20, 972,181.80 and 559,474.80 is: 839,212.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,121.20 : 972,181.80 = 559,474.80 : x
  2. Step 2: Convert to fraction form
    648,121.20/972,181.80 = 559,474.80/x
  3. Step 3: Cross multiply
    648,121.20x = 972,181.80 × 559,474.80
  4. Step 4: Simplify right side
    648,121.20x = 543,911,218,118.64
  5. Step 5: Solve for x
    x = 543,911,218,118.64/648,121.20
  6. Step 6: Final answer
    x = 839,212.20

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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.