Home / 867,886.41-1,197,669.87-485,926.86

Finding the Fourth Proportional to 867,886.41, 1,197,669.87 and 485,926.86

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Solution

The fourth proportional to 867,886.41, 1,197,669.87 and 485,926.86 is: 670,571.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,886.41 : 1,197,669.87 = 485,926.86 : x
  2. Step 2: Convert to fraction form
    867,886.41/1,197,669.87 = 485,926.86/x
  3. Step 3: Cross multiply
    867,886.41x = 1,197,669.87 × 485,926.86
  4. Step 4: Simplify right side
    867,886.41x = 581,979,959,245.71
  5. Step 5: Solve for x
    x = 581,979,959,245.71/867,886.41
  6. Step 6: Final answer
    x = 670,571.58

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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.