Home / 711,149.80-1,066,878.30-212,564.20

Finding the Fourth Proportional to 711,149.80, 1,066,878.30 and 212,564.20

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Solution

The fourth proportional to 711,149.80, 1,066,878.30 and 212,564.20 is: 318,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,149.80 : 1,066,878.30 = 212,564.20 : x
  2. Step 2: Convert to fraction form
    711,149.80/1,066,878.30 = 212,564.20/x
  3. Step 3: Cross multiply
    711,149.80x = 1,066,878.30 × 212,564.20
  4. Step 4: Simplify right side
    711,149.80x = 226,780,132,336.86
  5. Step 5: Solve for x
    x = 226,780,132,336.86/711,149.80
  6. Step 6: Final answer
    x = 318,892.21

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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.