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Finding the Fourth Proportional to 664,893.36, 917,597.50 and 370,588.88

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Solution

The fourth proportional to 664,893.36, 917,597.50 and 370,588.88 is: 511,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,893.36 : 917,597.50 = 370,588.88 : x
  2. Step 2: Convert to fraction form
    664,893.36/917,597.50 = 370,588.88/x
  3. Step 3: Cross multiply
    664,893.36x = 917,597.50 × 370,588.88
  4. Step 4: Simplify right side
    664,893.36x = 340,051,429,815.80
  5. Step 5: Solve for x
    x = 340,051,429,815.80/664,893.36
  6. Step 6: Final answer
    x = 511,437.55

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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.