Home / 711,190.80-1,066,939.80-212,605.20

Finding the Fourth Proportional to 711,190.80, 1,066,939.80 and 212,605.20

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Solution

The fourth proportional to 711,190.80, 1,066,939.80 and 212,605.20 is: 318,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,190.80 : 1,066,939.80 = 212,605.20 : x
  2. Step 2: Convert to fraction form
    711,190.80/1,066,939.80 = 212,605.20/x
  3. Step 3: Cross multiply
    711,190.80x = 1,066,939.80 × 212,605.20
  4. Step 4: Simplify right side
    711,190.80x = 226,836,949,566.96
  5. Step 5: Solve for x
    x = 226,836,949,566.96/711,190.80
  6. Step 6: Final answer
    x = 318,953.72

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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.