Home / 1,538,219.10-2,120,941.89-1,048,478.61

Finding the Fourth Proportional to 1,538,219.10, 2,120,941.89 and 1,048,478.61

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Solution

The fourth proportional to 1,538,219.10, 2,120,941.89 and 1,048,478.61 is: 1,445,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,219.10 : 2,120,941.89 = 1,048,478.61 : x
  2. Step 2: Convert to fraction form
    1,538,219.10/2,120,941.89 = 1,048,478.61/x
  3. Step 3: Cross multiply
    1,538,219.10x = 2,120,941.89 × 1,048,478.61
  4. Step 4: Simplify right side
    1,538,219.10x = 2,223,762,204,717.97
  5. Step 5: Solve for x
    x = 2,223,762,204,717.97/1,538,219.10
  6. Step 6: Final answer
    x = 1,445,673.25

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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.