Home / 502,143.05-692,788.73-284,322.03

Finding the Fourth Proportional to 502,143.05, 692,788.73 and 284,322.03

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Solution

The fourth proportional to 502,143.05, 692,788.73 and 284,322.03 is: 392,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,143.05 : 692,788.73 = 284,322.03 : x
  2. Step 2: Convert to fraction form
    502,143.05/692,788.73 = 284,322.03/x
  3. Step 3: Cross multiply
    502,143.05x = 692,788.73 × 284,322.03
  4. Step 4: Simplify right side
    502,143.05x = 196,975,096,653.11
  5. Step 5: Solve for x
    x = 196,975,096,653.11/502,143.05
  6. Step 6: Final answer
    x = 392,268.89

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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.