Home / 537,786.08-742,144.64-299,378.40

Finding the Fourth Proportional to 537,786.08, 742,144.64 and 299,378.40

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Solution

The fourth proportional to 537,786.08, 742,144.64 and 299,378.40 is: 413,142.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,786.08 : 742,144.64 = 299,378.40 : x
  2. Step 2: Convert to fraction form
    537,786.08/742,144.64 = 299,378.40/x
  3. Step 3: Cross multiply
    537,786.08x = 742,144.64 × 299,378.40
  4. Step 4: Simplify right side
    537,786.08x = 222,182,074,891.78
  5. Step 5: Solve for x
    x = 222,182,074,891.78/537,786.08
  6. Step 6: Final answer
    x = 413,142.11

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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.