Home / 666,101.30-919,164.22-375,696.86

Finding the Fourth Proportional to 666,101.30, 919,164.22 and 375,696.86

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Solution

The fourth proportional to 666,101.30, 919,164.22 and 375,696.86 is: 518,430.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,101.30 : 919,164.22 = 375,696.86 : x
  2. Step 2: Convert to fraction form
    666,101.30/919,164.22 = 375,696.86/x
  3. Step 3: Cross multiply
    666,101.30x = 919,164.22 × 375,696.86
  4. Step 4: Simplify right side
    666,101.30x = 345,327,111,303.45
  5. Step 5: Solve for x
    x = 345,327,111,303.45/666,101.30
  6. Step 6: Final answer
    x = 518,430.32

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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.