Home / 899,136.22-1,240,893.78-491,300.02

Finding the Fourth Proportional to 899,136.22, 1,240,893.78 and 491,300.02

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Solution

The fourth proportional to 899,136.22, 1,240,893.78 and 491,300.02 is: 678,040.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,136.22 : 1,240,893.78 = 491,300.02 : x
  2. Step 2: Convert to fraction form
    899,136.22/1,240,893.78 = 491,300.02/x
  3. Step 3: Cross multiply
    899,136.22x = 1,240,893.78 × 491,300.02
  4. Step 4: Simplify right side
    899,136.22x = 609,651,138,931.88
  5. Step 5: Solve for x
    x = 609,651,138,931.88/899,136.22
  6. Step 6: Final answer
    x = 678,040.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.