Home / 711,217.80-1,066,980.30-212,632.20

Finding the Fourth Proportional to 711,217.80, 1,066,980.30 and 212,632.20

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Solution

The fourth proportional to 711,217.80, 1,066,980.30 and 212,632.20 is: 318,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,217.80 : 1,066,980.30 = 212,632.20 : x
  2. Step 2: Convert to fraction form
    711,217.80/1,066,980.30 = 212,632.20/x
  3. Step 3: Cross multiply
    711,217.80x = 1,066,980.30 × 212,632.20
  4. Step 4: Simplify right side
    711,217.80x = 226,874,368,545.66
  5. Step 5: Solve for x
    x = 226,874,368,545.66/711,217.80
  6. Step 6: Final answer
    x = 318,994.22

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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.