Home / 1,144,157.76-1,578,762.24-685,164.96

Finding the Fourth Proportional to 1,144,157.76, 1,578,762.24 and 685,164.96

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Solution

The fourth proportional to 1,144,157.76, 1,578,762.24 and 685,164.96 is: 945,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,157.76 : 1,578,762.24 = 685,164.96 : x
  2. Step 2: Convert to fraction form
    1,144,157.76/1,578,762.24 = 685,164.96/x
  3. Step 3: Cross multiply
    1,144,157.76x = 1,578,762.24 × 685,164.96
  4. Step 4: Simplify right side
    1,144,157.76x = 1,081,712,567,019.11
  5. Step 5: Solve for x
    x = 1,081,712,567,019.11/1,144,157.76
  6. Step 6: Final answer
    x = 945,422.57

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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.