Home / 1,255,446.70-1,732,509.21-711,685.06

Finding the Fourth Proportional to 1,255,446.70, 1,732,509.21 and 711,685.06

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Solution

The fourth proportional to 1,255,446.70, 1,732,509.21 and 711,685.06 is: 982,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,446.70 : 1,732,509.21 = 711,685.06 : x
  2. Step 2: Convert to fraction form
    1,255,446.70/1,732,509.21 = 711,685.06/x
  3. Step 3: Cross multiply
    1,255,446.70x = 1,732,509.21 × 711,685.06
  4. Step 4: Simplify right side
    1,255,446.70x = 1,233,000,921,069.40
  5. Step 5: Solve for x
    x = 1,233,000,921,069.40/1,255,446.70
  6. Step 6: Final answer
    x = 982,121.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.