Home / 426,962.69-640,549.13-300,849.23

Finding the Fourth Proportional to 426,962.69, 640,549.13 and 300,849.23

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Solution

The fourth proportional to 426,962.69, 640,549.13 and 300,849.23 is: 451,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,962.69 : 640,549.13 = 300,849.23 : x
  2. Step 2: Convert to fraction form
    426,962.69/640,549.13 = 300,849.23/x
  3. Step 3: Cross multiply
    426,962.69x = 640,549.13 × 300,849.23
  4. Step 4: Simplify right side
    426,962.69x = 192,708,712,634.80
  5. Step 5: Solve for x
    x = 192,708,712,634.80/426,962.69
  6. Step 6: Final answer
    x = 451,347.90

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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.