Home / 918,942.52-1,268,141.40-511,035.46

Finding the Fourth Proportional to 918,942.52, 1,268,141.40 and 511,035.46

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Solution

The fourth proportional to 918,942.52, 1,268,141.40 and 511,035.46 is: 705,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,942.52 : 1,268,141.40 = 511,035.46 : x
  2. Step 2: Convert to fraction form
    918,942.52/1,268,141.40 = 511,035.46/x
  3. Step 3: Cross multiply
    918,942.52x = 1,268,141.40 × 511,035.46
  4. Step 4: Simplify right side
    918,942.52x = 648,065,223,694.04
  5. Step 5: Solve for x
    x = 648,065,223,694.04/918,942.52
  6. Step 6: Final answer
    x = 705,229.34

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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.