Home / 1,182,728.37-1,632,164.90-638,864.18

Finding the Fourth Proportional to 1,182,728.37, 1,632,164.90 and 638,864.18

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Solution

The fourth proportional to 1,182,728.37, 1,632,164.90 and 638,864.18 is: 881,632.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,728.37 : 1,632,164.90 = 638,864.18 : x
  2. Step 2: Convert to fraction form
    1,182,728.37/1,632,164.90 = 638,864.18/x
  3. Step 3: Cross multiply
    1,182,728.37x = 1,632,164.90 × 638,864.18
  4. Step 4: Simplify right side
    1,182,728.37x = 1,042,731,679,108.14
  5. Step 5: Solve for x
    x = 1,042,731,679,108.14/1,182,728.37
  6. Step 6: Final answer
    x = 881,632.42

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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.