Home / 711,209.80-1,066,968.30-212,624.20

Finding the Fourth Proportional to 711,209.80, 1,066,968.30 and 212,624.20

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Solution

The fourth proportional to 711,209.80, 1,066,968.30 and 212,624.20 is: 318,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,209.80 : 1,066,968.30 = 212,624.20 : x
  2. Step 2: Convert to fraction form
    711,209.80/1,066,968.30 = 212,624.20/x
  3. Step 3: Cross multiply
    711,209.80x = 1,066,968.30 × 212,624.20
  4. Step 4: Simplify right side
    711,209.80x = 226,863,281,212.86
  5. Step 5: Solve for x
    x = 226,863,281,212.86/711,209.80
  6. Step 6: Final answer
    x = 318,982.22

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1.5x scale

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.