Home / 1,626,238.37-2,439,136.11-428,060.35

Finding the Fourth Proportional to 1,626,238.37, 2,439,136.11 and 428,060.35

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Solution

The fourth proportional to 1,626,238.37, 2,439,136.11 and 428,060.35 is: 642,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,238.37 : 2,439,136.11 = 428,060.35 : x
  2. Step 2: Convert to fraction form
    1,626,238.37/2,439,136.11 = 428,060.35/x
  3. Step 3: Cross multiply
    1,626,238.37x = 2,439,136.11 × 428,060.35
  4. Step 4: Simplify right side
    1,626,238.37x = 1,044,097,456,944.24
  5. Step 5: Solve for x
    x = 1,044,097,456,944.24/1,626,238.37
  6. Step 6: Final answer
    x = 642,032.24

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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.