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Finding the Fourth Proportional to 632,554.56, 872,782.56 and 377,856

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Solution

The fourth proportional to 632,554.56, 872,782.56 and 377,856 is: 521,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,554.56 : 872,782.56 = 377,856 : x
  2. Step 2: Convert to fraction form
    632,554.56/872,782.56 = 377,856/x
  3. Step 3: Cross multiply
    632,554.56x = 872,782.56 × 377,856
  4. Step 4: Simplify right side
    632,554.56x = 329,786,126,991.36
  5. Step 5: Solve for x
    x = 329,786,126,991.36/632,554.56
  6. Step 6: Final answer
    x = 521,356.02

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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.