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Finding the Fourth Proportional to 439,542.30, 658,329.30 and 360,810.30

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Solution

The fourth proportional to 439,542.30, 658,329.30 and 360,810.30 is: 540,407.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,542.30 : 658,329.30 = 360,810.30 : x
  2. Step 2: Convert to fraction form
    439,542.30/658,329.30 = 360,810.30/x
  3. Step 3: Cross multiply
    439,542.30x = 658,329.30 × 360,810.30
  4. Step 4: Simplify right side
    439,542.30x = 237,531,992,231.79
  5. Step 5: Solve for x
    x = 237,531,992,231.79/439,542.30
  6. Step 6: Final answer
    x = 540,407.58

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1.5x scale

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.