Home / 1,380,677.84-2,071,136.44-421,349.44

Finding the Fourth Proportional to 1,380,677.84, 2,071,136.44 and 421,349.44

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Solution

The fourth proportional to 1,380,677.84, 2,071,136.44 and 421,349.44 is: 632,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,677.84 : 2,071,136.44 = 421,349.44 : x
  2. Step 2: Convert to fraction form
    1,380,677.84/2,071,136.44 = 421,349.44/x
  3. Step 3: Cross multiply
    1,380,677.84x = 2,071,136.44 × 421,349.44
  4. Step 4: Simplify right side
    1,380,677.84x = 872,672,179,157.59
  5. Step 5: Solve for x
    x = 872,672,179,157.59/1,380,677.84
  6. Step 6: Final answer
    x = 632,060.68

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1.5x scale

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.