Home / 840,842.50-1,260,513.79-308,239.19

Finding the Fourth Proportional to 840,842.50, 1,260,513.79 and 308,239.19

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Solution

The fourth proportional to 840,842.50, 1,260,513.79 and 308,239.19 is: 462,083.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,842.50 : 1,260,513.79 = 308,239.19 : x
  2. Step 2: Convert to fraction form
    840,842.50/1,260,513.79 = 308,239.19/x
  3. Step 3: Cross multiply
    840,842.50x = 1,260,513.79 × 308,239.19
  4. Step 4: Simplify right side
    840,842.50x = 388,539,749,613.43
  5. Step 5: Solve for x
    x = 388,539,749,613.43/840,842.50
  6. Step 6: Final answer
    x = 462,083.86

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1.5x scale

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.