Home / 1,590,216.90-2,188,959.12-1,385,916.63

Finding the Fourth Proportional to 1,590,216.90, 2,188,959.12 and 1,385,916.63

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Solution

The fourth proportional to 1,590,216.90, 2,188,959.12 and 1,385,916.63 is: 1,907,736.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,590,216.90 : 2,188,959.12 = 1,385,916.63 : x
  2. Step 2: Convert to fraction form
    1,590,216.90/2,188,959.12 = 1,385,916.63/x
  3. Step 3: Cross multiply
    1,590,216.90x = 2,188,959.12 × 1,385,916.63
  4. Step 4: Simplify right side
    1,590,216.90x = 3,033,714,846,798.17
  5. Step 5: Solve for x
    x = 3,033,714,846,798.17/1,590,216.90
  6. Step 6: Final answer
    x = 1,907,736.51

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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.