Home / 1,185,716.76-1,778,569.32-287,158.48

Finding the Fourth Proportional to 1,185,716.76, 1,778,569.32 and 287,158.48

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Solution

The fourth proportional to 1,185,716.76, 1,778,569.32 and 287,158.48 is: 430,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,716.76 : 1,778,569.32 = 287,158.48 : x
  2. Step 2: Convert to fraction form
    1,185,716.76/1,778,569.32 = 287,158.48/x
  3. Step 3: Cross multiply
    1,185,716.76x = 1,778,569.32 × 287,158.48
  4. Step 4: Simplify right side
    1,185,716.76x = 510,731,262,505.83
  5. Step 5: Solve for x
    x = 510,731,262,505.83/1,185,716.76
  6. Step 6: Final answer
    x = 430,736.31

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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.