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Finding the Fourth Proportional to 505,722.02, 697,884.71 and 276,280.08

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Solution

The fourth proportional to 505,722.02, 697,884.71 and 276,280.08 is: 381,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,722.02 : 697,884.71 = 276,280.08 : x
  2. Step 2: Convert to fraction form
    505,722.02/697,884.71 = 276,280.08/x
  3. Step 3: Cross multiply
    505,722.02x = 697,884.71 × 276,280.08
  4. Step 4: Simplify right side
    505,722.02x = 192,811,642,128.18
  5. Step 5: Solve for x
    x = 192,811,642,128.18/505,722.02
  6. Step 6: Final answer
    x = 381,260.13

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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.