Home / 379,815.60-569,723.40-190,858.80

Finding the Fourth Proportional to 379,815.60, 569,723.40 and 190,858.80

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Solution

The fourth proportional to 379,815.60, 569,723.40 and 190,858.80 is: 286,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,815.60 : 569,723.40 = 190,858.80 : x
  2. Step 2: Convert to fraction form
    379,815.60/569,723.40 = 190,858.80/x
  3. Step 3: Cross multiply
    379,815.60x = 569,723.40 × 190,858.80
  4. Step 4: Simplify right side
    379,815.60x = 108,736,724,455.92
  5. Step 5: Solve for x
    x = 108,736,724,455.92/379,815.60
  6. Step 6: Final answer
    x = 286,288.20

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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.