Home / 664,376.10-996,434.55-214,988.10

Finding the Fourth Proportional to 664,376.10, 996,434.55 and 214,988.10

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Solution

The fourth proportional to 664,376.10, 996,434.55 and 214,988.10 is: 322,440.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,376.10 : 996,434.55 = 214,988.10 : x
  2. Step 2: Convert to fraction form
    664,376.10/996,434.55 = 214,988.10/x
  3. Step 3: Cross multiply
    664,376.10x = 996,434.55 × 214,988.10
  4. Step 4: Simplify right side
    664,376.10x = 214,221,570,678.86
  5. Step 5: Solve for x
    x = 214,221,570,678.86/664,376.10
  6. Step 6: Final answer
    x = 322,440.21

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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.