Home / 1,238,868.17-1,858,979.31-480,739.46

Finding the Fourth Proportional to 1,238,868.17, 1,858,979.31 and 480,739.46

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Solution

The fourth proportional to 1,238,868.17, 1,858,979.31 and 480,739.46 is: 721,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,868.17 : 1,858,979.31 = 480,739.46 : x
  2. Step 2: Convert to fraction form
    1,238,868.17/1,858,979.31 = 480,739.46/x
  3. Step 3: Cross multiply
    1,238,868.17x = 1,858,979.31 × 480,739.46
  4. Step 4: Simplify right side
    1,238,868.17x = 893,684,701,247.06
  5. Step 5: Solve for x
    x = 893,684,701,247.06/1,238,868.17
  6. Step 6: Final answer
    x = 721,371.91

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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.