Home / 1,289,551.63-1,779,599.75-708,828.54

Finding the Fourth Proportional to 1,289,551.63, 1,779,599.75 and 708,828.54

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Solution

The fourth proportional to 1,289,551.63, 1,779,599.75 and 708,828.54 is: 978,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,551.63 : 1,779,599.75 = 708,828.54 : x
  2. Step 2: Convert to fraction form
    1,289,551.63/1,779,599.75 = 708,828.54/x
  3. Step 3: Cross multiply
    1,289,551.63x = 1,779,599.75 × 708,828.54
  4. Step 4: Simplify right side
    1,289,551.63x = 1,261,431,092,576.87
  5. Step 5: Solve for x
    x = 1,261,431,092,576.87/1,289,551.63
  6. Step 6: Final answer
    x = 978,193.55

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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.