Home / 858,486.60-1,287,146.70-325,927.80

Finding the Fourth Proportional to 858,486.60, 1,287,146.70 and 325,927.80

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Solution

The fourth proportional to 858,486.60, 1,287,146.70 and 325,927.80 is: 488,670.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,486.60 : 1,287,146.70 = 325,927.80 : x
  2. Step 2: Convert to fraction form
    858,486.60/1,287,146.70 = 325,927.80/x
  3. Step 3: Cross multiply
    858,486.60x = 1,287,146.70 × 325,927.80
  4. Step 4: Simplify right side
    858,486.60x = 419,516,892,208.26
  5. Step 5: Solve for x
    x = 419,516,892,208.26/858,486.60
  6. Step 6: Final answer
    x = 488,670.29

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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.