Home / 1,256,624.80-1,885,112.42-403,722.32

Finding the Fourth Proportional to 1,256,624.80, 1,885,112.42 and 403,722.32

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Solution

The fourth proportional to 1,256,624.80, 1,885,112.42 and 403,722.32 is: 605,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,624.80 : 1,885,112.42 = 403,722.32 : x
  2. Step 2: Convert to fraction form
    1,256,624.80/1,885,112.42 = 403,722.32/x
  3. Step 3: Cross multiply
    1,256,624.80x = 1,885,112.42 × 403,722.32
  4. Step 4: Simplify right side
    1,256,624.80x = 761,061,959,663.21
  5. Step 5: Solve for x
    x = 761,061,959,663.21/1,256,624.80
  6. Step 6: Final answer
    x = 605,639.77

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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.