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Finding the Fourth Proportional to 1,898,544.82, 2,849,785.61 and 1,271,838.10

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Solution

The fourth proportional to 1,898,544.82, 2,849,785.61 and 1,271,838.10 is: 1,909,075.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,544.82 : 2,849,785.61 = 1,271,838.10 : x
  2. Step 2: Convert to fraction form
    1,898,544.82/2,849,785.61 = 1,271,838.10/x
  3. Step 3: Cross multiply
    1,898,544.82x = 2,849,785.61 × 1,271,838.10
  4. Step 4: Simplify right side
    1,898,544.82x = 3,624,465,915,629.74
  5. Step 5: Solve for x
    x = 3,624,465,915,629.74/1,898,544.82
  6. Step 6: Final answer
    x = 1,909,075.77

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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.