Home / 801,240.93-1,105,715.75-438,698.54

Finding the Fourth Proportional to 801,240.93, 1,105,715.75 and 438,698.54

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Solution

The fourth proportional to 801,240.93, 1,105,715.75 and 438,698.54 is: 605,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,240.93 : 1,105,715.75 = 438,698.54 : x
  2. Step 2: Convert to fraction form
    801,240.93/1,105,715.75 = 438,698.54/x
  3. Step 3: Cross multiply
    801,240.93x = 1,105,715.75 × 438,698.54
  4. Step 4: Simplify right side
    801,240.93x = 485,075,885,750.80
  5. Step 5: Solve for x
    x = 485,075,885,750.80/801,240.93
  6. Step 6: Final answer
    x = 605,405.77

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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.