Home / 537,965.30-742,169.30-320,130.36

Finding the Fourth Proportional to 537,965.30, 742,169.30 and 320,130.36

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Solution

The fourth proportional to 537,965.30, 742,169.30 and 320,130.36 is: 441,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,965.30 : 742,169.30 = 320,130.36 : x
  2. Step 2: Convert to fraction form
    537,965.30/742,169.30 = 320,130.36/x
  3. Step 3: Cross multiply
    537,965.30x = 742,169.30 × 320,130.36
  4. Step 4: Simplify right side
    537,965.30x = 237,590,923,589.30
  5. Step 5: Solve for x
    x = 237,590,923,589.30/537,965.30
  6. Step 6: Final answer
    x = 441,647.30

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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.