Home / 666,300.81-919,495.28-375,974.01

Finding the Fourth Proportional to 666,300.81, 919,495.28 and 375,974.01

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Solution

The fourth proportional to 666,300.81, 919,495.28 and 375,974.01 is: 518,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,300.81 : 919,495.28 = 375,974.01 : x
  2. Step 2: Convert to fraction form
    666,300.81/919,495.28 = 375,974.01/x
  3. Step 3: Cross multiply
    666,300.81x = 919,495.28 × 375,974.01
  4. Step 4: Simplify right side
    666,300.81x = 345,706,325,717.80
  5. Step 5: Solve for x
    x = 345,706,325,717.80/666,300.81
  6. Step 6: Final answer
    x = 518,844.22

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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.