Home / 659,528.09-989,363.83-210,143.33

Finding the Fourth Proportional to 659,528.09, 989,363.83 and 210,143.33

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Solution

The fourth proportional to 659,528.09, 989,363.83 and 210,143.33 is: 315,237.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,528.09 : 989,363.83 = 210,143.33 : x
  2. Step 2: Convert to fraction form
    659,528.09/989,363.83 = 210,143.33/x
  3. Step 3: Cross multiply
    659,528.09x = 989,363.83 × 210,143.33
  4. Step 4: Simplify right side
    659,528.09x = 207,908,209,817.75
  5. Step 5: Solve for x
    x = 207,908,209,817.75/659,528.09
  6. Step 6: Final answer
    x = 315,237.84

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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.