Home / 916,820.20-1,371,342.30-822,730.60

Finding the Fourth Proportional to 916,820.20, 1,371,342.30 and 822,730.60

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Solution

The fourth proportional to 916,820.20, 1,371,342.30 and 822,730.60 is: 1,230,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,820.20 : 1,371,342.30 = 822,730.60 : x
  2. Step 2: Convert to fraction form
    916,820.20/1,371,342.30 = 822,730.60/x
  3. Step 3: Cross multiply
    916,820.20x = 1,371,342.30 × 822,730.60
  4. Step 4: Simplify right side
    916,820.20x = 1,128,245,273,284.38
  5. Step 5: Solve for x
    x = 1,128,245,273,284.38/916,820.20
  6. Step 6: Final answer
    x = 1,230,606.91

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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.