Home / 642,918.26-964,384.71-243,450.56

Finding the Fourth Proportional to 642,918.26, 964,384.71 and 243,450.56

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Solution

The fourth proportional to 642,918.26, 964,384.71 and 243,450.56 is: 365,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,918.26 : 964,384.71 = 243,450.56 : x
  2. Step 2: Convert to fraction form
    642,918.26/964,384.71 = 243,450.56/x
  3. Step 3: Cross multiply
    642,918.26x = 964,384.71 × 243,450.56
  4. Step 4: Simplify right side
    642,918.26x = 234,779,997,704.94
  5. Step 5: Solve for x
    x = 234,779,997,704.94/642,918.26
  6. Step 6: Final answer
    x = 365,178.61

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1.5x scale

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.