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Finding the Fourth Proportional to 609,825.55, 915,576.21 and 310,507.26

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Solution

The fourth proportional to 609,825.55, 915,576.21 and 310,507.26 is: 466,187.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,825.55 : 915,576.21 = 310,507.26 : x
  2. Step 2: Convert to fraction form
    609,825.55/915,576.21 = 310,507.26/x
  3. Step 3: Cross multiply
    609,825.55x = 915,576.21 × 310,507.26
  4. Step 4: Simplify right side
    609,825.55x = 284,293,060,288.29
  5. Step 5: Solve for x
    x = 284,293,060,288.29/609,825.55
  6. Step 6: Final answer
    x = 466,187.52

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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.