Home / 853,147.71-1,177,405.85-490,685.27

Finding the Fourth Proportional to 853,147.71, 1,177,405.85 and 490,685.27

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Solution

The fourth proportional to 853,147.71, 1,177,405.85 and 490,685.27 is: 677,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,147.71 : 1,177,405.85 = 490,685.27 : x
  2. Step 2: Convert to fraction form
    853,147.71/1,177,405.85 = 490,685.27/x
  3. Step 3: Cross multiply
    853,147.71x = 1,177,405.85 × 490,685.27
  4. Step 4: Simplify right side
    853,147.71x = 577,735,702,746.51
  5. Step 5: Solve for x
    x = 577,735,702,746.51/853,147.71
  6. Step 6: Final answer
    x = 677,181.33

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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.