Home / 774,039.18-1,161,021.53-261,670.20

Finding the Fourth Proportional to 774,039.18, 1,161,021.53 and 261,670.20

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Solution

The fourth proportional to 774,039.18, 1,161,021.53 and 261,670.20 is: 392,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,039.18 : 1,161,021.53 = 261,670.20 : x
  2. Step 2: Convert to fraction form
    774,039.18/1,161,021.53 = 261,670.20/x
  3. Step 3: Cross multiply
    774,039.18x = 1,161,021.53 × 261,670.20
  4. Step 4: Simplify right side
    774,039.18x = 303,804,732,259.75
  5. Step 5: Solve for x
    x = 303,804,732,259.75/774,039.18
  6. Step 6: Final answer
    x = 392,492.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.