Home / 1,247,995.38-1,870,844.88-678,544.32

Finding the Fourth Proportional to 1,247,995.38, 1,870,844.88 and 678,544.32

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Solution

The fourth proportional to 1,247,995.38, 1,870,844.88 and 678,544.32 is: 1,017,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,995.38 : 1,870,844.88 = 678,544.32 : x
  2. Step 2: Convert to fraction form
    1,247,995.38/1,870,844.88 = 678,544.32/x
  3. Step 3: Cross multiply
    1,247,995.38x = 1,870,844.88 × 678,544.32
  4. Step 4: Simplify right side
    1,247,995.38x = 1,269,451,166,925.08
  5. Step 5: Solve for x
    x = 1,269,451,166,925.08/1,247,995.38
  6. Step 6: Final answer
    x = 1,017,192.20

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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.