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Finding the Fourth Proportional to 815,296, 1,125,070.72 and 452,742.84

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Solution

The fourth proportional to 815,296, 1,125,070.72 and 452,742.84 is: 624,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,296 : 1,125,070.72 = 452,742.84 : x
  2. Step 2: Convert to fraction form
    815,296/1,125,070.72 = 452,742.84/x
  3. Step 3: Cross multiply
    815,296x = 1,125,070.72 × 452,742.84
  4. Step 4: Simplify right side
    815,296x = 509,367,712,973.65
  5. Step 5: Solve for x
    x = 509,367,712,973.65/815,296
  6. Step 6: Final answer
    x = 624,764.15

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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.