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Finding the Fourth Proportional to 505,488.02, 697,573.59 and 279,133.34

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Solution

The fourth proportional to 505,488.02, 697,573.59 and 279,133.34 is: 385,204.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,488.02 : 697,573.59 = 279,133.34 : x
  2. Step 2: Convert to fraction form
    505,488.02/697,573.59 = 279,133.34/x
  3. Step 3: Cross multiply
    505,488.02x = 697,573.59 × 279,133.34
  4. Step 4: Simplify right side
    505,488.02x = 194,716,046,072.49
  5. Step 5: Solve for x
    x = 194,716,046,072.49/505,488.02
  6. Step 6: Final answer
    x = 385,204.08

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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.