Home / 1,311,923.12-1,968,456.48-459,606.20

Finding the Fourth Proportional to 1,311,923.12, 1,968,456.48 and 459,606.20

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Solution

The fourth proportional to 1,311,923.12, 1,968,456.48 and 459,606.20 is: 689,609.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,923.12 : 1,968,456.48 = 459,606.20 : x
  2. Step 2: Convert to fraction form
    1,311,923.12/1,968,456.48 = 459,606.20/x
  3. Step 3: Cross multiply
    1,311,923.12x = 1,968,456.48 × 459,606.20
  4. Step 4: Simplify right side
    1,311,923.12x = 904,714,802,638.18
  5. Step 5: Solve for x
    x = 904,714,802,638.18/1,311,923.12
  6. Step 6: Final answer
    x = 689,609.62

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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.