Home / 1,953,619.20-2,934,921.60-1,378,566.72

Finding the Fourth Proportional to 1,953,619.20, 2,934,921.60 and 1,378,566.72

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Solution

The fourth proportional to 1,953,619.20, 2,934,921.60 and 1,378,566.72 is: 2,071,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953,619.20 : 2,934,921.60 = 1,378,566.72 : x
  2. Step 2: Convert to fraction form
    1,953,619.20/2,934,921.60 = 1,378,566.72/x
  3. Step 3: Cross multiply
    1,953,619.20x = 2,934,921.60 × 1,378,566.72
  4. Step 4: Simplify right side
    1,953,619.20x = 4,045,985,243,569.15
  5. Step 5: Solve for x
    x = 4,045,985,243,569.15/1,953,619.20
  6. Step 6: Final answer
    x = 2,071,020.41

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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.