Home / 850,851.60-1,276,277.40-430,072.80

Finding the Fourth Proportional to 850,851.60, 1,276,277.40 and 430,072.80

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Solution

The fourth proportional to 850,851.60, 1,276,277.40 and 430,072.80 is: 645,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,851.60 : 1,276,277.40 = 430,072.80 : x
  2. Step 2: Convert to fraction form
    850,851.60/1,276,277.40 = 430,072.80/x
  3. Step 3: Cross multiply
    850,851.60x = 1,276,277.40 × 430,072.80
  4. Step 4: Simplify right side
    850,851.60x = 548,892,194,994.72
  5. Step 5: Solve for x
    x = 548,892,194,994.72/850,851.60
  6. Step 6: Final answer
    x = 645,109.20

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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.