Home / 1,368,136.44-2,052,209.52-421,502.40

Finding the Fourth Proportional to 1,368,136.44, 2,052,209.52 and 421,502.40

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Solution

The fourth proportional to 1,368,136.44, 2,052,209.52 and 421,502.40 is: 632,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,136.44 : 2,052,209.52 = 421,502.40 : x
  2. Step 2: Convert to fraction form
    1,368,136.44/2,052,209.52 = 421,502.40/x
  3. Step 3: Cross multiply
    1,368,136.44x = 2,052,209.52 × 421,502.40
  4. Step 4: Simplify right side
    1,368,136.44x = 865,011,237,982.85
  5. Step 5: Solve for x
    x = 865,011,237,982.85/1,368,136.44
  6. Step 6: Final answer
    x = 632,255.10

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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.