Home / 1,205,375.45-1,663,308-715,260.33

Finding the Fourth Proportional to 1,205,375.45, 1,663,308 and 715,260.33

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Solution

The fourth proportional to 1,205,375.45, 1,663,308 and 715,260.33 is: 986,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,375.45 : 1,663,308 = 715,260.33 : x
  2. Step 2: Convert to fraction form
    1,205,375.45/1,663,308 = 715,260.33/x
  3. Step 3: Cross multiply
    1,205,375.45x = 1,663,308 × 715,260.33
  4. Step 4: Simplify right side
    1,205,375.45x = 1,189,698,228,971.64
  5. Step 5: Solve for x
    x = 1,189,698,228,971.64/1,205,375.45
  6. Step 6: Final answer
    x = 986,993.91

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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.