Home / 899,133.72-1,240,890.33-491,297.52

Finding the Fourth Proportional to 899,133.72, 1,240,890.33 and 491,297.52

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Solution

The fourth proportional to 899,133.72, 1,240,890.33 and 491,297.52 is: 678,037.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,133.72 : 1,240,890.33 = 491,297.52 : x
  2. Step 2: Convert to fraction form
    899,133.72/1,240,890.33 = 491,297.52/x
  3. Step 3: Cross multiply
    899,133.72x = 1,240,890.33 × 491,297.52
  4. Step 4: Simplify right side
    899,133.72x = 609,646,341,720.98
  5. Step 5: Solve for x
    x = 609,646,341,720.98/899,133.72
  6. Step 6: Final answer
    x = 678,037.46

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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.