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Finding the Fourth Proportional to 677,969.88, 935,595.78 and 372,051.36

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Solution

The fourth proportional to 677,969.88, 935,595.78 and 372,051.36 is: 513,429.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,969.88 : 935,595.78 = 372,051.36 : x
  2. Step 2: Convert to fraction form
    677,969.88/935,595.78 = 372,051.36/x
  3. Step 3: Cross multiply
    677,969.88x = 935,595.78 × 372,051.36
  4. Step 4: Simplify right side
    677,969.88x = 348,089,682,359.26
  5. Step 5: Solve for x
    x = 348,089,682,359.26/677,969.88
  6. Step 6: Final answer
    x = 513,429.42

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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.