Home / 670,416.60-1,004,312.70-403,383.90

Finding the Fourth Proportional to 670,416.60, 1,004,312.70 and 403,383.90

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Solution

The fourth proportional to 670,416.60, 1,004,312.70 and 403,383.90 is: 604,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,416.60 : 1,004,312.70 = 403,383.90 : x
  2. Step 2: Convert to fraction form
    670,416.60/1,004,312.70 = 403,383.90/x
  3. Step 3: Cross multiply
    670,416.60x = 1,004,312.70 × 403,383.90
  4. Step 4: Simplify right side
    670,416.60x = 405,123,573,745.53
  5. Step 5: Solve for x
    x = 405,123,573,745.53/670,416.60
  6. Step 6: Final answer
    x = 604,286.31

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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.