Home / 1,256,623.80-1,885,110.92-403,721.32

Finding the Fourth Proportional to 1,256,623.80, 1,885,110.92 and 403,721.32

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Solution

The fourth proportional to 1,256,623.80, 1,885,110.92 and 403,721.32 is: 605,638.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,623.80 : 1,885,110.92 = 403,721.32 : x
  2. Step 2: Convert to fraction form
    1,256,623.80/1,885,110.92 = 403,721.32/x
  3. Step 3: Cross multiply
    1,256,623.80x = 1,885,110.92 × 403,721.32
  4. Step 4: Simplify right side
    1,256,623.80x = 761,059,468,968.81
  5. Step 5: Solve for x
    x = 761,059,468,968.81/1,256,623.80
  6. Step 6: Final answer
    x = 605,638.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.