Home / 659,456.20-989,165.76-210,204.04

Finding the Fourth Proportional to 659,456.20, 989,165.76 and 210,204.04

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Solution

The fourth proportional to 659,456.20, 989,165.76 and 210,204.04 is: 315,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,456.20 : 989,165.76 = 210,204.04 : x
  2. Step 2: Convert to fraction form
    659,456.20/989,165.76 = 210,204.04/x
  3. Step 3: Cross multiply
    659,456.20x = 989,165.76 × 210,204.04
  4. Step 4: Simplify right side
    659,456.20x = 207,926,638,981.67
  5. Step 5: Solve for x
    x = 207,926,638,981.67/659,456.20
  6. Step 6: Final answer
    x = 315,300.15

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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.