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Finding the Fourth Proportional to 670,537.56, 925,115.36 and 380,117.98

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Solution

The fourth proportional to 670,537.56, 925,115.36 and 380,117.98 is: 524,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,537.56 : 925,115.36 = 380,117.98 : x
  2. Step 2: Convert to fraction form
    670,537.56/925,115.36 = 380,117.98/x
  3. Step 3: Cross multiply
    670,537.56x = 925,115.36 × 380,117.98
  4. Step 4: Simplify right side
    670,537.56x = 351,652,981,910.17
  5. Step 5: Solve for x
    x = 351,652,981,910.17/670,537.56
  6. Step 6: Final answer
    x = 524,434.43

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1.5x scale

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.