Home / 666,203.27-919,349.04-375,815.46

Finding the Fourth Proportional to 666,203.27, 919,349.04 and 375,815.46

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Solution

The fourth proportional to 666,203.27, 919,349.04 and 375,815.46 is: 518,618.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,203.27 : 919,349.04 = 375,815.46 : x
  2. Step 2: Convert to fraction form
    666,203.27/919,349.04 = 375,815.46/x
  3. Step 3: Cross multiply
    666,203.27x = 919,349.04 × 375,815.46
  4. Step 4: Simplify right side
    666,203.27x = 345,505,582,368.16
  5. Step 5: Solve for x
    x = 345,505,582,368.16/666,203.27
  6. Step 6: Final answer
    x = 518,618.87

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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.