Home / 557,146.08-768,867.12-302,499.36

Finding the Fourth Proportional to 557,146.08, 768,867.12 and 302,499.36

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Solution

The fourth proportional to 557,146.08, 768,867.12 and 302,499.36 is: 417,452.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,146.08 : 768,867.12 = 302,499.36 : x
  2. Step 2: Convert to fraction form
    557,146.08/768,867.12 = 302,499.36/x
  3. Step 3: Cross multiply
    557,146.08x = 768,867.12 × 302,499.36
  4. Step 4: Simplify right side
    557,146.08x = 232,581,811,725.04
  5. Step 5: Solve for x
    x = 232,581,811,725.04/557,146.08
  6. Step 6: Final answer
    x = 417,452.12

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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.