Home / 1,424,497.20-2,136,745.80-427,225.20

Finding the Fourth Proportional to 1,424,497.20, 2,136,745.80 and 427,225.20

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Solution

The fourth proportional to 1,424,497.20, 2,136,745.80 and 427,225.20 is: 640,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,497.20 : 2,136,745.80 = 427,225.20 : x
  2. Step 2: Convert to fraction form
    1,424,497.20/2,136,745.80 = 427,225.20/x
  3. Step 3: Cross multiply
    1,424,497.20x = 2,136,745.80 × 427,225.20
  4. Step 4: Simplify right side
    1,424,497.20x = 912,871,651,754.16
  5. Step 5: Solve for x
    x = 912,871,651,754.16/1,424,497.20
  6. Step 6: Final answer
    x = 640,837.80

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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.