Home / 1,190,576.86-1,643,025.69-646,712.48

Finding the Fourth Proportional to 1,190,576.86, 1,643,025.69 and 646,712.48

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Solution

The fourth proportional to 1,190,576.86, 1,643,025.69 and 646,712.48 is: 892,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,576.86 : 1,643,025.69 = 646,712.48 : x
  2. Step 2: Convert to fraction form
    1,190,576.86/1,643,025.69 = 646,712.48/x
  3. Step 3: Cross multiply
    1,190,576.86x = 1,643,025.69 × 646,712.48
  4. Step 4: Simplify right side
    1,190,576.86x = 1,062,565,218,683.61
  5. Step 5: Solve for x
    x = 1,062,565,218,683.61/1,190,576.86
  6. Step 6: Final answer
    x = 892,479.31

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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.