Home / 1,276,996.08-1,915,500.93-378,445.60

Finding the Fourth Proportional to 1,276,996.08, 1,915,500.93 and 378,445.60

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Solution

The fourth proportional to 1,276,996.08, 1,915,500.93 and 378,445.60 is: 567,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,996.08 : 1,915,500.93 = 378,445.60 : x
  2. Step 2: Convert to fraction form
    1,276,996.08/1,915,500.93 = 378,445.60/x
  3. Step 3: Cross multiply
    1,276,996.08x = 1,915,500.93 × 378,445.60
  4. Step 4: Simplify right side
    1,276,996.08x = 724,912,898,754.41
  5. Step 5: Solve for x
    x = 724,912,898,754.41/1,276,996.08
  6. Step 6: Final answer
    x = 567,670.42

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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.