Home / 1,321,823.13-1,824,127.05-718,211.13

Finding the Fourth Proportional to 1,321,823.13, 1,824,127.05 and 718,211.13

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Solution

The fourth proportional to 1,321,823.13, 1,824,127.05 and 718,211.13 is: 991,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,823.13 : 1,824,127.05 = 718,211.13 : x
  2. Step 2: Convert to fraction form
    1,321,823.13/1,824,127.05 = 718,211.13/x
  3. Step 3: Cross multiply
    1,321,823.13x = 1,824,127.05 × 718,211.13
  4. Step 4: Simplify right side
    1,321,823.13x = 1,310,108,349,844.07
  5. Step 5: Solve for x
    x = 1,310,108,349,844.07/1,321,823.13
  6. Step 6: Final answer
    x = 991,137.41

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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.