Home / 772,083.52-1,065,447.81-427,951.47

Finding the Fourth Proportional to 772,083.52, 1,065,447.81 and 427,951.47

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Solution

The fourth proportional to 772,083.52, 1,065,447.81 and 427,951.47 is: 590,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,083.52 : 1,065,447.81 = 427,951.47 : x
  2. Step 2: Convert to fraction form
    772,083.52/1,065,447.81 = 427,951.47/x
  3. Step 3: Cross multiply
    772,083.52x = 1,065,447.81 × 427,951.47
  4. Step 4: Simplify right side
    772,083.52x = 455,959,956,497.78
  5. Step 5: Solve for x
    x = 455,959,956,497.78/772,083.52
  6. Step 6: Final answer
    x = 590,557.81

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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.