Home / 822,959.76-1,133,161.02-720,411.33

Finding the Fourth Proportional to 822,959.76, 1,133,161.02 and 720,411.33

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Solution

The fourth proportional to 822,959.76, 1,133,161.02 and 720,411.33 is: 991,958.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,959.76 : 1,133,161.02 = 720,411.33 : x
  2. Step 2: Convert to fraction form
    822,959.76/1,133,161.02 = 720,411.33/x
  3. Step 3: Cross multiply
    822,959.76x = 1,133,161.02 × 720,411.33
  4. Step 4: Simplify right side
    822,959.76x = 816,342,037,522.36
  5. Step 5: Solve for x
    x = 816,342,037,522.36/822,959.76
  6. Step 6: Final answer
    x = 991,958.63

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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.