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Finding the Fourth Proportional to 609,576.48, 913,570.40 and 339,693.86

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Solution

The fourth proportional to 609,576.48, 913,570.40 and 339,693.86 is: 509,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,576.48 : 913,570.40 = 339,693.86 : x
  2. Step 2: Convert to fraction form
    609,576.48/913,570.40 = 339,693.86/x
  3. Step 3: Cross multiply
    609,576.48x = 913,570.40 × 339,693.86
  4. Step 4: Simplify right side
    609,576.48x = 310,334,255,557.74
  5. Step 5: Solve for x
    x = 310,334,255,557.74/609,576.48
  6. Step 6: Final answer
    x = 509,098.15

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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.