Home / 1,016,917.20-1,525,375.80-618,339.60

Finding the Fourth Proportional to 1,016,917.20, 1,525,375.80 and 618,339.60

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Solution

The fourth proportional to 1,016,917.20, 1,525,375.80 and 618,339.60 is: 927,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,917.20 : 1,525,375.80 = 618,339.60 : x
  2. Step 2: Convert to fraction form
    1,016,917.20/1,525,375.80 = 618,339.60/x
  3. Step 3: Cross multiply
    1,016,917.20x = 1,525,375.80 × 618,339.60
  4. Step 4: Simplify right side
    1,016,917.20x = 943,200,262,021.68
  5. Step 5: Solve for x
    x = 943,200,262,021.68/1,016,917.20
  6. Step 6: Final answer
    x = 927,509.40

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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.