Home / 820,188.02-1,131,860.58-480,656

Finding the Fourth Proportional to 820,188.02, 1,131,860.58 and 480,656

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Solution

The fourth proportional to 820,188.02, 1,131,860.58 and 480,656 is: 663,305.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,188.02 : 1,131,860.58 = 480,656 : x
  2. Step 2: Convert to fraction form
    820,188.02/1,131,860.58 = 480,656/x
  3. Step 3: Cross multiply
    820,188.02x = 1,131,860.58 × 480,656
  4. Step 4: Simplify right side
    820,188.02x = 544,035,578,940.48
  5. Step 5: Solve for x
    x = 544,035,578,940.48/820,188.02
  6. Step 6: Final answer
    x = 663,305.93

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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.