Home / 858,042.93-1,287,402.99-325,705.26

Finding the Fourth Proportional to 858,042.93, 1,287,402.99 and 325,705.26

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Solution

The fourth proportional to 858,042.93, 1,287,402.99 and 325,705.26 is: 488,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,042.93 : 1,287,402.99 = 325,705.26 : x
  2. Step 2: Convert to fraction form
    858,042.93/1,287,402.99 = 325,705.26/x
  3. Step 3: Cross multiply
    858,042.93x = 1,287,402.99 × 325,705.26
  4. Step 4: Simplify right side
    858,042.93x = 419,313,925,582.73
  5. Step 5: Solve for x
    x = 419,313,925,582.73/858,042.93
  6. Step 6: Final answer
    x = 488,686.42

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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.