Home / 850,511.60-1,276,751.55-490,968.80

Finding the Fourth Proportional to 850,511.60, 1,276,751.55 and 490,968.80

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Solution

The fourth proportional to 850,511.60, 1,276,751.55 and 490,968.80 is: 737,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,511.60 : 1,276,751.55 = 490,968.80 : x
  2. Step 2: Convert to fraction form
    850,511.60/1,276,751.55 = 490,968.80/x
  3. Step 3: Cross multiply
    850,511.60x = 1,276,751.55 × 490,968.80
  4. Step 4: Simplify right side
    850,511.60x = 626,845,176,401.64
  5. Step 5: Solve for x
    x = 626,845,176,401.64/850,511.60
  6. Step 6: Final answer
    x = 737,021.31

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1.5x scale

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.