Home / 711,990.56-1,068,160.84-213,354.56

Finding the Fourth Proportional to 711,990.56, 1,068,160.84 and 213,354.56

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Solution

The fourth proportional to 711,990.56, 1,068,160.84 and 213,354.56 is: 320,084.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,990.56 : 1,068,160.84 = 213,354.56 : x
  2. Step 2: Convert to fraction form
    711,990.56/1,068,160.84 = 213,354.56/x
  3. Step 3: Cross multiply
    711,990.56x = 1,068,160.84 × 213,354.56
  4. Step 4: Simplify right side
    711,990.56x = 227,896,988,164.45
  5. Step 5: Solve for x
    x = 227,896,988,164.45/711,990.56
  6. Step 6: Final answer
    x = 320,084.28

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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.