Home / 790,484.37-1,185,062.07-640,352.36

Finding the Fourth Proportional to 790,484.37, 1,185,062.07 and 640,352.36

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Solution

The fourth proportional to 790,484.37, 1,185,062.07 and 640,352.36 is: 959,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,484.37 : 1,185,062.07 = 640,352.36 : x
  2. Step 2: Convert to fraction form
    790,484.37/1,185,062.07 = 640,352.36/x
  3. Step 3: Cross multiply
    790,484.37x = 1,185,062.07 × 640,352.36
  4. Step 4: Simplify right side
    790,484.37x = 758,857,287,345.68
  5. Step 5: Solve for x
    x = 758,857,287,345.68/790,484.37
  6. Step 6: Final answer
    x = 959,990.25

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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.