Home / 916,821.20-1,371,343.80-822,731.60

Finding the Fourth Proportional to 916,821.20, 1,371,343.80 and 822,731.60

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Solution

The fourth proportional to 916,821.20, 1,371,343.80 and 822,731.60 is: 1,230,608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,821.20 : 1,371,343.80 = 822,731.60 : x
  2. Step 2: Convert to fraction form
    916,821.20/1,371,343.80 = 822,731.60/x
  3. Step 3: Cross multiply
    916,821.20x = 1,371,343.80 × 822,731.60
  4. Step 4: Simplify right side
    916,821.20x = 1,128,247,878,724.08
  5. Step 5: Solve for x
    x = 1,128,247,878,724.08/916,821.20
  6. Step 6: Final answer
    x = 1,230,608.41

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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.