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Finding the Fourth Proportional to 670,447.62, 925,140.15 and 383,950.62

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Solution

The fourth proportional to 670,447.62, 925,140.15 and 383,950.62 is: 529,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,447.62 : 925,140.15 = 383,950.62 : x
  2. Step 2: Convert to fraction form
    670,447.62/925,140.15 = 383,950.62/x
  3. Step 3: Cross multiply
    670,447.62x = 925,140.15 × 383,950.62
  4. Step 4: Simplify right side
    670,447.62x = 355,208,134,179.39
  5. Step 5: Solve for x
    x = 355,208,134,179.39/670,447.62
  6. Step 6: Final answer
    x = 529,807.44

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Double scale
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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.