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Finding the Fourth Proportional to 977,809.60, 1,467,880.80 and 551,684.80

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Solution

The fourth proportional to 977,809.60, 1,467,880.80 and 551,684.80 is: 828,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,809.60 : 1,467,880.80 = 551,684.80 : x
  2. Step 2: Convert to fraction form
    977,809.60/1,467,880.80 = 551,684.80/x
  3. Step 3: Cross multiply
    977,809.60x = 1,467,880.80 × 551,684.80
  4. Step 4: Simplify right side
    977,809.60x = 809,807,525,571.84
  5. Step 5: Solve for x
    x = 809,807,525,571.84/977,809.60
  6. Step 6: Final answer
    x = 828,185.29

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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.