Home / 850,722.60-1,276,256.70-289,813.80

Finding the Fourth Proportional to 850,722.60, 1,276,256.70 and 289,813.80

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Solution

The fourth proportional to 850,722.60, 1,276,256.70 and 289,813.80 is: 434,779.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,722.60 : 1,276,256.70 = 289,813.80 : x
  2. Step 2: Convert to fraction form
    850,722.60/1,276,256.70 = 289,813.80/x
  3. Step 3: Cross multiply
    850,722.60x = 1,276,256.70 × 289,813.80
  4. Step 4: Simplify right side
    850,722.60x = 369,876,804,002.46
  5. Step 5: Solve for x
    x = 369,876,804,002.46/850,722.60
  6. Step 6: Final answer
    x = 434,779.57

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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.