Home / 659,439.45-989,140.64-210,187.24

Finding the Fourth Proportional to 659,439.45, 989,140.64 and 210,187.24

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Solution

The fourth proportional to 659,439.45, 989,140.64 and 210,187.24 is: 315,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,439.45 : 989,140.64 = 210,187.24 : x
  2. Step 2: Convert to fraction form
    659,439.45/989,140.64 = 210,187.24/x
  3. Step 3: Cross multiply
    659,439.45x = 989,140.64 × 210,187.24
  4. Step 4: Simplify right side
    659,439.45x = 207,904,737,569.65
  5. Step 5: Solve for x
    x = 207,904,737,569.65/659,439.45
  6. Step 6: Final answer
    x = 315,274.95

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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.