Home / 1,432,583.98-2,148,136.48-421,574.66

Finding the Fourth Proportional to 1,432,583.98, 2,148,136.48 and 421,574.66

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Solution

The fourth proportional to 1,432,583.98, 2,148,136.48 and 421,574.66 is: 632,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,583.98 : 2,148,136.48 = 421,574.66 : x
  2. Step 2: Convert to fraction form
    1,432,583.98/2,148,136.48 = 421,574.66/x
  3. Step 3: Cross multiply
    1,432,583.98x = 2,148,136.48 × 421,574.66
  4. Step 4: Simplify right side
    1,432,583.98x = 905,599,906,189.60
  5. Step 5: Solve for x
    x = 905,599,906,189.60/1,432,583.98
  6. Step 6: Final answer
    x = 632,144.38

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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.