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Finding the Fourth Proportional to 835,726.72, 1,254,088 and 303,289.28

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Solution

The fourth proportional to 835,726.72, 1,254,088 and 303,289.28 is: 455,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,726.72 : 1,254,088 = 303,289.28 : x
  2. Step 2: Convert to fraction form
    835,726.72/1,254,088 = 303,289.28/x
  3. Step 3: Cross multiply
    835,726.72x = 1,254,088 × 303,289.28
  4. Step 4: Simplify right side
    835,726.72x = 380,351,446,576.64
  5. Step 5: Solve for x
    x = 380,351,446,576.64/835,726.72
  6. Step 6: Final answer
    x = 455,114.62

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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.