Home / 667,415.66-1,000,678.68-346,779.58

Finding the Fourth Proportional to 667,415.66, 1,000,678.68 and 346,779.58

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Solution

The fourth proportional to 667,415.66, 1,000,678.68 and 346,779.58 is: 519,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,415.66 : 1,000,678.68 = 346,779.58 : x
  2. Step 2: Convert to fraction form
    667,415.66/1,000,678.68 = 346,779.58/x
  3. Step 3: Cross multiply
    667,415.66x = 1,000,678.68 × 346,779.58
  4. Step 4: Simplify right side
    667,415.66x = 347,014,932,365.35
  5. Step 5: Solve for x
    x = 347,014,932,365.35/667,415.66
  6. Step 6: Final answer
    x = 519,938.25

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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.