Home / 1,500,849.81-2,071,152.18-821,786.31

Finding the Fourth Proportional to 1,500,849.81, 2,071,152.18 and 821,786.31

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Solution

The fourth proportional to 1,500,849.81, 2,071,152.18 and 821,786.31 is: 1,134,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,849.81 : 2,071,152.18 = 821,786.31 : x
  2. Step 2: Convert to fraction form
    1,500,849.81/2,071,152.18 = 821,786.31/x
  3. Step 3: Cross multiply
    1,500,849.81x = 2,071,152.18 × 821,786.31
  4. Step 4: Simplify right side
    1,500,849.81x = 1,702,044,507,450.66
  5. Step 5: Solve for x
    x = 1,702,044,507,450.66/1,500,849.81
  6. Step 6: Final answer
    x = 1,134,053.85

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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.