Home / 919,837.66-1,379,978.64-288,751.48

Finding the Fourth Proportional to 919,837.66, 1,379,978.64 and 288,751.48

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Solution

The fourth proportional to 919,837.66, 1,379,978.64 and 288,751.48 is: 433,196.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,837.66 : 1,379,978.64 = 288,751.48 : x
  2. Step 2: Convert to fraction form
    919,837.66/1,379,978.64 = 288,751.48/x
  3. Step 3: Cross multiply
    919,837.66x = 1,379,978.64 × 288,751.48
  4. Step 4: Simplify right side
    919,837.66x = 398,470,874,668.39
  5. Step 5: Solve for x
    x = 398,470,874,668.39/919,837.66
  6. Step 6: Final answer
    x = 433,196.96

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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.