Home / 1,238,221.81-1,857,021-479,803.02

Finding the Fourth Proportional to 1,238,221.81, 1,857,021 and 479,803.02

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Solution

The fourth proportional to 1,238,221.81, 1,857,021 and 479,803.02 is: 719,583.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,221.81 : 1,857,021 = 479,803.02 : x
  2. Step 2: Convert to fraction form
    1,238,221.81/1,857,021 = 479,803.02/x
  3. Step 3: Cross multiply
    1,238,221.81x = 1,857,021 × 479,803.02
  4. Step 4: Simplify right side
    1,238,221.81x = 891,004,284,003.42
  5. Step 5: Solve for x
    x = 891,004,284,003.42/1,238,221.81
  6. Step 6: Final answer
    x = 719,583.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.