Home / 666,096.81-919,218.78-367,739.91

Finding the Fourth Proportional to 666,096.81, 919,218.78 and 367,739.91

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Solution

The fourth proportional to 666,096.81, 919,218.78 and 367,739.91 is: 507,483.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,096.81 : 919,218.78 = 367,739.91 : x
  2. Step 2: Convert to fraction form
    666,096.81/919,218.78 = 367,739.91/x
  3. Step 3: Cross multiply
    666,096.81x = 919,218.78 × 367,739.91
  4. Step 4: Simplify right side
    666,096.81x = 338,033,428,939.25
  5. Step 5: Solve for x
    x = 338,033,428,939.25/666,096.81
  6. Step 6: Final answer
    x = 507,483.93

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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.