Home / 1,230,853.13-1,698,662.90-687,095.07

Finding the Fourth Proportional to 1,230,853.13, 1,698,662.90 and 687,095.07

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Solution

The fourth proportional to 1,230,853.13, 1,698,662.90 and 687,095.07 is: 948,238.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,853.13 : 1,698,662.90 = 687,095.07 : x
  2. Step 2: Convert to fraction form
    1,230,853.13/1,698,662.90 = 687,095.07/x
  3. Step 3: Cross multiply
    1,230,853.13x = 1,698,662.90 × 687,095.07
  4. Step 4: Simplify right side
    1,230,853.13x = 1,167,142,899,529.65
  5. Step 5: Solve for x
    x = 1,167,142,899,529.65/1,230,853.13
  6. Step 6: Final answer
    x = 948,238.97

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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.