Home / 1,152,812.36-1,590,671.32-809,696.68

Finding the Fourth Proportional to 1,152,812.36, 1,590,671.32 and 809,696.68

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Solution

The fourth proportional to 1,152,812.36, 1,590,671.32 and 809,696.68 is: 1,117,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,812.36 : 1,590,671.32 = 809,696.68 : x
  2. Step 2: Convert to fraction form
    1,152,812.36/1,590,671.32 = 809,696.68/x
  3. Step 3: Cross multiply
    1,152,812.36x = 1,590,671.32 × 809,696.68
  4. Step 4: Simplify right side
    1,152,812.36x = 1,287,961,286,775.22
  5. Step 5: Solve for x
    x = 1,287,961,286,775.22/1,152,812.36
  6. Step 6: Final answer
    x = 1,117,234.11

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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.