Home / 1,198,814.80-1,789,477.30-1,047,477.10

Finding the Fourth Proportional to 1,198,814.80, 1,789,477.30 and 1,047,477.10

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Solution

The fourth proportional to 1,198,814.80, 1,789,477.30 and 1,047,477.10 is: 1,563,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,814.80 : 1,789,477.30 = 1,047,477.10 : x
  2. Step 2: Convert to fraction form
    1,198,814.80/1,789,477.30 = 1,047,477.10/x
  3. Step 3: Cross multiply
    1,198,814.80x = 1,789,477.30 × 1,047,477.10
  4. Step 4: Simplify right side
    1,198,814.80x = 1,874,436,492,719.83
  5. Step 5: Solve for x
    x = 1,874,436,492,719.83/1,198,814.80
  6. Step 6: Final answer
    x = 1,563,574.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.