Home / 939,283.21-1,407,803.81-512,926.37

Finding the Fourth Proportional to 939,283.21, 1,407,803.81 and 512,926.37

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Solution

The fourth proportional to 939,283.21, 1,407,803.81 and 512,926.37 is: 768,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,283.21 : 1,407,803.81 = 512,926.37 : x
  2. Step 2: Convert to fraction form
    939,283.21/1,407,803.81 = 512,926.37/x
  3. Step 3: Cross multiply
    939,283.21x = 1,407,803.81 × 512,926.37
  4. Step 4: Simplify right side
    939,283.21x = 722,099,693,611.08
  5. Step 5: Solve for x
    x = 722,099,693,611.08/939,283.21
  6. Step 6: Final answer
    x = 768,777.39

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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.