Home / 1,314,348.48-1,812,965.76-861,668.64

Finding the Fourth Proportional to 1,314,348.48, 1,812,965.76 and 861,668.64

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Solution

The fourth proportional to 1,314,348.48, 1,812,965.76 and 861,668.64 is: 1,188,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,348.48 : 1,812,965.76 = 861,668.64 : x
  2. Step 2: Convert to fraction form
    1,314,348.48/1,812,965.76 = 861,668.64/x
  3. Step 3: Cross multiply
    1,314,348.48x = 1,812,965.76 × 861,668.64
  4. Step 4: Simplify right side
    1,314,348.48x = 1,562,175,740,785.77
  5. Step 5: Solve for x
    x = 1,562,175,740,785.77/1,314,348.48
  6. Step 6: Final answer
    x = 1,188,555.22

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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.