Home / 770,648.78-1,063,709.25-448,421.33

Finding the Fourth Proportional to 770,648.78, 1,063,709.25 and 448,421.33

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Solution

The fourth proportional to 770,648.78, 1,063,709.25 and 448,421.33 is: 618,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,648.78 : 1,063,709.25 = 448,421.33 : x
  2. Step 2: Convert to fraction form
    770,648.78/1,063,709.25 = 448,421.33/x
  3. Step 3: Cross multiply
    770,648.78x = 1,063,709.25 × 448,421.33
  4. Step 4: Simplify right side
    770,648.78x = 476,989,917,596.00
  5. Step 5: Solve for x
    x = 476,989,917,596.00/770,648.78
  6. Step 6: Final answer
    x = 618,945.92

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1.5x scale

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.