Home / 1,369,112.22-1,889,368.74-765,500.22

Finding the Fourth Proportional to 1,369,112.22, 1,889,368.74 and 765,500.22

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Solution

The fourth proportional to 1,369,112.22, 1,889,368.74 and 765,500.22 is: 1,056,386.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,112.22 : 1,889,368.74 = 765,500.22 : x
  2. Step 2: Convert to fraction form
    1,369,112.22/1,889,368.74 = 765,500.22/x
  3. Step 3: Cross multiply
    1,369,112.22x = 1,889,368.74 × 765,500.22
  4. Step 4: Simplify right side
    1,369,112.22x = 1,446,312,186,131.12
  5. Step 5: Solve for x
    x = 1,446,312,186,131.12/1,369,112.22
  6. Step 6: Final answer
    x = 1,056,386.88

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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.