Home / 878,890.60-1,318,076.70-346,234.60

Finding the Fourth Proportional to 878,890.60, 1,318,076.70 and 346,234.60

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Solution

The fourth proportional to 878,890.60, 1,318,076.70 and 346,234.60 is: 519,249.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,890.60 : 1,318,076.70 = 346,234.60 : x
  2. Step 2: Convert to fraction form
    878,890.60/1,318,076.70 = 346,234.60/x
  3. Step 3: Cross multiply
    878,890.60x = 1,318,076.70 × 346,234.60
  4. Step 4: Simplify right side
    878,890.60x = 456,363,758,993.82
  5. Step 5: Solve for x
    x = 456,363,758,993.82/878,890.60
  6. Step 6: Final answer
    x = 519,249.79

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Double scale
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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.