Home / 1,185,718.10-1,778,571.20-287,159.82

Finding the Fourth Proportional to 1,185,718.10, 1,778,571.20 and 287,159.82

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Solution

The fourth proportional to 1,185,718.10, 1,778,571.20 and 287,159.82 is: 430,738.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,718.10 : 1,778,571.20 = 287,159.82 : x
  2. Step 2: Convert to fraction form
    1,185,718.10/1,778,571.20 = 287,159.82/x
  3. Step 3: Cross multiply
    1,185,718.10x = 1,778,571.20 × 287,159.82
  4. Step 4: Simplify right side
    1,185,718.10x = 510,734,179,697.44
  5. Step 5: Solve for x
    x = 510,734,179,697.44/1,185,718.10
  6. Step 6: Final answer
    x = 430,738.29

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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.