Home / 1,412,573.19-2,118,632.78-387,664.01

Finding the Fourth Proportional to 1,412,573.19, 2,118,632.78 and 387,664.01

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Solution

The fourth proportional to 1,412,573.19, 2,118,632.78 and 387,664.01 is: 581,433.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,573.19 : 2,118,632.78 = 387,664.01 : x
  2. Step 2: Convert to fraction form
    1,412,573.19/2,118,632.78 = 387,664.01/x
  3. Step 3: Cross multiply
    1,412,573.19x = 2,118,632.78 × 387,664.01
  4. Step 4: Simplify right side
    1,412,573.19x = 821,317,666,680.76
  5. Step 5: Solve for x
    x = 821,317,666,680.76/1,412,573.19
  6. Step 6: Final answer
    x = 581,433.71

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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.