Home / 694,511.90-1,040,129.45-429,091.10

Finding the Fourth Proportional to 694,511.90, 1,040,129.45 and 429,091.10

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Solution

The fourth proportional to 694,511.90, 1,040,129.45 and 429,091.10 is: 642,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,511.90 : 1,040,129.45 = 429,091.10 : x
  2. Step 2: Convert to fraction form
    694,511.90/1,040,129.45 = 429,091.10/x
  3. Step 3: Cross multiply
    694,511.90x = 1,040,129.45 × 429,091.10
  4. Step 4: Simplify right side
    694,511.90x = 446,310,289,842.90
  5. Step 5: Solve for x
    x = 446,310,289,842.90/694,511.90
  6. Step 6: Final answer
    x = 642,624.40

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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.