Home / 1,375,945.32-2,063,845.08-429,207.60

Finding the Fourth Proportional to 1,375,945.32, 2,063,845.08 and 429,207.60

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Solution

The fourth proportional to 1,375,945.32, 2,063,845.08 and 429,207.60 is: 643,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,945.32 : 2,063,845.08 = 429,207.60 : x
  2. Step 2: Convert to fraction form
    1,375,945.32/2,063,845.08 = 429,207.60/x
  3. Step 3: Cross multiply
    1,375,945.32x = 2,063,845.08 × 429,207.60
  4. Step 4: Simplify right side
    1,375,945.32x = 885,817,993,558.61
  5. Step 5: Solve for x
    x = 885,817,993,558.61/1,375,945.32
  6. Step 6: Final answer
    x = 643,788.66

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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.