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Finding the Fourth Proportional to 670,404.33, 925,138.50 and 380,042.83

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Solution

The fourth proportional to 670,404.33, 925,138.50 and 380,042.83 is: 524,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,404.33 : 925,138.50 = 380,042.83 : x
  2. Step 2: Convert to fraction form
    670,404.33/925,138.50 = 380,042.83/x
  3. Step 3: Cross multiply
    670,404.33x = 925,138.50 × 380,042.83
  4. Step 4: Simplify right side
    670,404.33x = 351,592,249,056.26
  5. Step 5: Solve for x
    x = 351,592,249,056.26/670,404.33
  6. Step 6: Final answer
    x = 524,448.06

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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.