Home / 853,420.86-1,177,754.58-490,844.27

Finding the Fourth Proportional to 853,420.86, 1,177,754.58 and 490,844.27

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Solution

The fourth proportional to 853,420.86, 1,177,754.58 and 490,844.27 is: 677,384.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,420.86 : 1,177,754.58 = 490,844.27 : x
  2. Step 2: Convert to fraction form
    853,420.86/1,177,754.58 = 490,844.27/x
  3. Step 3: Cross multiply
    853,420.86x = 1,177,754.58 × 490,844.27
  4. Step 4: Simplify right side
    853,420.86x = 578,094,090,003.64
  5. Step 5: Solve for x
    x = 578,094,090,003.64/853,420.86
  6. Step 6: Final answer
    x = 677,384.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.