Home / 389,395.08-537,608.48-298,576.58

Finding the Fourth Proportional to 389,395.08, 537,608.48 and 298,576.58

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Solution

The fourth proportional to 389,395.08, 537,608.48 and 298,576.58 is: 412,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,395.08 : 537,608.48 = 298,576.58 : x
  2. Step 2: Convert to fraction form
    389,395.08/537,608.48 = 298,576.58/x
  3. Step 3: Cross multiply
    389,395.08x = 537,608.48 × 298,576.58
  4. Step 4: Simplify right side
    389,395.08x = 160,517,297,156.47
  5. Step 5: Solve for x
    x = 160,517,297,156.47/389,395.08
  6. Step 6: Final answer
    x = 412,222.20

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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.