Home / 640,028.53-882,576.43-549,683.29

Finding the Fourth Proportional to 640,028.53, 882,576.43 and 549,683.29

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Solution

The fourth proportional to 640,028.53, 882,576.43 and 549,683.29 is: 757,993.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,028.53 : 882,576.43 = 549,683.29 : x
  2. Step 2: Convert to fraction form
    640,028.53/882,576.43 = 549,683.29/x
  3. Step 3: Cross multiply
    640,028.53x = 882,576.43 × 549,683.29
  4. Step 4: Simplify right side
    640,028.53x = 485,137,515,718.86
  5. Step 5: Solve for x
    x = 485,137,515,718.86/640,028.53
  6. Step 6: Final answer
    x = 757,993.58

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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.