Home / 1,136,021.20-1,704,031.80-1,128,648.40

Finding the Fourth Proportional to 1,136,021.20, 1,704,031.80 and 1,128,648.40

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Solution

The fourth proportional to 1,136,021.20, 1,704,031.80 and 1,128,648.40 is: 1,692,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,021.20 : 1,704,031.80 = 1,128,648.40 : x
  2. Step 2: Convert to fraction form
    1,136,021.20/1,704,031.80 = 1,128,648.40/x
  3. Step 3: Cross multiply
    1,136,021.20x = 1,704,031.80 × 1,128,648.40
  4. Step 4: Simplify right side
    1,136,021.20x = 1,923,252,764,619.12
  5. Step 5: Solve for x
    x = 1,923,252,764,619.12/1,136,021.20
  6. Step 6: Final answer
    x = 1,692,972.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.