Home / 1,536,485.52-2,120,351.76-857,421.84

Finding the Fourth Proportional to 1,536,485.52, 2,120,351.76 and 857,421.84

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Solution

The fourth proportional to 1,536,485.52, 2,120,351.76 and 857,421.84 is: 1,183,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,485.52 : 2,120,351.76 = 857,421.84 : x
  2. Step 2: Convert to fraction form
    1,536,485.52/2,120,351.76 = 857,421.84/x
  3. Step 3: Cross multiply
    1,536,485.52x = 2,120,351.76 × 857,421.84
  4. Step 4: Simplify right side
    1,536,485.52x = 1,818,035,907,506.44
  5. Step 5: Solve for x
    x = 1,818,035,907,506.44/1,536,485.52
  6. Step 6: Final answer
    x = 1,183,243.11

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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.