Home / 848,645.80-1,272,968.70-815,986.60

Finding the Fourth Proportional to 848,645.80, 1,272,968.70 and 815,986.60

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Solution

The fourth proportional to 848,645.80, 1,272,968.70 and 815,986.60 is: 1,223,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,645.80 : 1,272,968.70 = 815,986.60 : x
  2. Step 2: Convert to fraction form
    848,645.80/1,272,968.70 = 815,986.60/x
  3. Step 3: Cross multiply
    848,645.80x = 1,272,968.70 × 815,986.60
  4. Step 4: Simplify right side
    848,645.80x = 1,038,725,401,419.42
  5. Step 5: Solve for x
    x = 1,038,725,401,419.42/848,645.80
  6. Step 6: Final answer
    x = 1,223,979.90

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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.