Home / 778,308.72-1,167,400.88-346,160.12

Finding the Fourth Proportional to 778,308.72, 1,167,400.88 and 346,160.12

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Solution

The fourth proportional to 778,308.72, 1,167,400.88 and 346,160.12 is: 519,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,308.72 : 1,167,400.88 = 346,160.12 : x
  2. Step 2: Convert to fraction form
    778,308.72/1,167,400.88 = 346,160.12/x
  3. Step 3: Cross multiply
    778,308.72x = 1,167,400.88 × 346,160.12
  4. Step 4: Simplify right side
    778,308.72x = 404,107,628,708.91
  5. Step 5: Solve for x
    x = 404,107,628,708.91/778,308.72
  6. Step 6: Final answer
    x = 519,212.52

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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.