Home / 1,328,576.27-1,993,180.76-430,018.16

Finding the Fourth Proportional to 1,328,576.27, 1,993,180.76 and 430,018.16

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Solution

The fourth proportional to 1,328,576.27, 1,993,180.76 and 430,018.16 is: 645,129.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,576.27 : 1,993,180.76 = 430,018.16 : x
  2. Step 2: Convert to fraction form
    1,328,576.27/1,993,180.76 = 430,018.16/x
  3. Step 3: Cross multiply
    1,328,576.27x = 1,993,180.76 × 430,018.16
  4. Step 4: Simplify right side
    1,328,576.27x = 857,103,922,962.60
  5. Step 5: Solve for x
    x = 857,103,922,962.60/1,328,576.27
  6. Step 6: Final answer
    x = 645,129.63

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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.