Home / 670,379.10-1,004,256.45-403,346.40

Finding the Fourth Proportional to 670,379.10, 1,004,256.45 and 403,346.40

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Solution

The fourth proportional to 670,379.10, 1,004,256.45 and 403,346.40 is: 604,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,379.10 : 1,004,256.45 = 403,346.40 : x
  2. Step 2: Convert to fraction form
    670,379.10/1,004,256.45 = 403,346.40/x
  3. Step 3: Cross multiply
    670,379.10x = 1,004,256.45 × 403,346.40
  4. Step 4: Simplify right side
    670,379.10x = 405,063,223,784.28
  5. Step 5: Solve for x
    x = 405,063,223,784.28/670,379.10
  6. Step 6: Final answer
    x = 604,230.09

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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.