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Finding the Fourth Proportional to 636,208.42, 877,945.34 and 349,726.46

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Solution

The fourth proportional to 636,208.42, 877,945.34 and 349,726.46 is: 482,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,208.42 : 877,945.34 = 349,726.46 : x
  2. Step 2: Convert to fraction form
    636,208.42/877,945.34 = 349,726.46/x
  3. Step 3: Cross multiply
    636,208.42x = 877,945.34 × 349,726.46
  4. Step 4: Simplify right side
    636,208.42x = 307,040,715,831.70
  5. Step 5: Solve for x
    x = 307,040,715,831.70/636,208.42
  6. Step 6: Final answer
    x = 482,610.27

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1.5x scale

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.