Home / 505,767.36-697,973.04-279,427.44

Finding the Fourth Proportional to 505,767.36, 697,973.04 and 279,427.44

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Solution

The fourth proportional to 505,767.36, 697,973.04 and 279,427.44 is: 385,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,767.36 : 697,973.04 = 279,427.44 : x
  2. Step 2: Convert to fraction form
    505,767.36/697,973.04 = 279,427.44/x
  3. Step 3: Cross multiply
    505,767.36x = 697,973.04 × 279,427.44
  4. Step 4: Simplify right side
    505,767.36x = 195,032,819,756.22
  5. Step 5: Solve for x
    x = 195,032,819,756.22/505,767.36
  6. Step 6: Final answer
    x = 385,617.65

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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.