Home / 1,511,155.81-2,085,376.85-822,827.46

Finding the Fourth Proportional to 1,511,155.81, 2,085,376.85 and 822,827.46

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Solution

The fourth proportional to 1,511,155.81, 2,085,376.85 and 822,827.46 is: 1,135,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,155.81 : 2,085,376.85 = 822,827.46 : x
  2. Step 2: Convert to fraction form
    1,511,155.81/2,085,376.85 = 822,827.46/x
  3. Step 3: Cross multiply
    1,511,155.81x = 2,085,376.85 × 822,827.46
  4. Step 4: Simplify right side
    1,511,155.81x = 1,715,905,336,628.30
  5. Step 5: Solve for x
    x = 1,715,905,336,628.30/1,511,155.81
  6. Step 6: Final answer
    x = 1,135,492.00

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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.