Home / 1,018,508.47-1,405,014.67-691,838.33

Finding the Fourth Proportional to 1,018,508.47, 1,405,014.67 and 691,838.33

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Solution

The fourth proportional to 1,018,508.47, 1,405,014.67 and 691,838.33 is: 954,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,508.47 : 1,405,014.67 = 691,838.33 : x
  2. Step 2: Convert to fraction form
    1,018,508.47/1,405,014.67 = 691,838.33/x
  3. Step 3: Cross multiply
    1,018,508.47x = 1,405,014.67 × 691,838.33
  4. Step 4: Simplify right side
    1,018,508.47x = 972,043,002,918.30
  5. Step 5: Solve for x
    x = 972,043,002,918.30/1,018,508.47
  6. Step 6: Final answer
    x = 954,378.91

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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.