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Finding the Fourth Proportional to 693,802.36, 957,742.44 and 421,957.52

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Solution

The fourth proportional to 693,802.36, 957,742.44 and 421,957.52 is: 582,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,802.36 : 957,742.44 = 421,957.52 : x
  2. Step 2: Convert to fraction form
    693,802.36/957,742.44 = 421,957.52/x
  3. Step 3: Cross multiply
    693,802.36x = 957,742.44 × 421,957.52
  4. Step 4: Simplify right side
    693,802.36x = 404,126,624,781.15
  5. Step 5: Solve for x
    x = 404,126,624,781.15/693,802.36
  6. Step 6: Final answer
    x = 582,480.90

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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.