Home / 505,426.64-697,485.33-279,072.14

Finding the Fourth Proportional to 505,426.64, 697,485.33 and 279,072.14

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Solution

The fourth proportional to 505,426.64, 697,485.33 and 279,072.14 is: 385,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,426.64 : 697,485.33 = 279,072.14 : x
  2. Step 2: Convert to fraction form
    505,426.64/697,485.33 = 279,072.14/x
  3. Step 3: Cross multiply
    505,426.64x = 697,485.33 × 279,072.14
  4. Step 4: Simplify right side
    505,426.64x = 194,648,720,174.28
  5. Step 5: Solve for x
    x = 194,648,720,174.28/505,426.64
  6. Step 6: Final answer
    x = 385,117.65

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1.5x scale

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.