Home / 636,975.60-878,999.99-346,588.37

Finding the Fourth Proportional to 636,975.60, 878,999.99 and 346,588.37

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Solution

The fourth proportional to 636,975.60, 878,999.99 and 346,588.37 is: 478,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,975.60 : 878,999.99 = 346,588.37 : x
  2. Step 2: Convert to fraction form
    636,975.60/878,999.99 = 346,588.37/x
  3. Step 3: Cross multiply
    636,975.60x = 878,999.99 × 346,588.37
  4. Step 4: Simplify right side
    636,975.60x = 304,651,170,932.43
  5. Step 5: Solve for x
    x = 304,651,170,932.43/636,975.60
  6. Step 6: Final answer
    x = 478,277.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.