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Finding the Fourth Proportional to 674,342.48, 930,611.40 and 372,555.92

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Solution

The fourth proportional to 674,342.48, 930,611.40 and 372,555.92 is: 514,137.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,342.48 : 930,611.40 = 372,555.92 : x
  2. Step 2: Convert to fraction form
    674,342.48/930,611.40 = 372,555.92/x
  3. Step 3: Cross multiply
    674,342.48x = 930,611.40 × 372,555.92
  4. Step 4: Simplify right side
    674,342.48x = 346,704,786,289.49
  5. Step 5: Solve for x
    x = 346,704,786,289.49/674,342.48
  6. Step 6: Final answer
    x = 514,137.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.