Home / 1,418,728.50-1,957,838.31-774,146.70

Finding the Fourth Proportional to 1,418,728.50, 1,957,838.31 and 774,146.70

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Solution

The fourth proportional to 1,418,728.50, 1,957,838.31 and 774,146.70 is: 1,068,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,728.50 : 1,957,838.31 = 774,146.70 : x
  2. Step 2: Convert to fraction form
    1,418,728.50/1,957,838.31 = 774,146.70/x
  3. Step 3: Cross multiply
    1,418,728.50x = 1,957,838.31 × 774,146.70
  4. Step 4: Simplify right side
    1,418,728.50x = 1,515,654,066,820.08
  5. Step 5: Solve for x
    x = 1,515,654,066,820.08/1,418,728.50
  6. Step 6: Final answer
    x = 1,068,318.62

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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.