Home / 693,722.77-957,491.75-421,733

Finding the Fourth Proportional to 693,722.77, 957,491.75 and 421,733

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Solution

The fourth proportional to 693,722.77, 957,491.75 and 421,733 is: 582,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,722.77 : 957,491.75 = 421,733 : x
  2. Step 2: Convert to fraction form
    693,722.77/957,491.75 = 421,733/x
  3. Step 3: Cross multiply
    693,722.77x = 957,491.75 × 421,733
  4. Step 4: Simplify right side
    693,722.77x = 403,805,868,202.75
  5. Step 5: Solve for x
    x = 403,805,868,202.75/693,722.77
  6. Step 6: Final answer
    x = 582,085.36

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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.