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Finding the Fourth Proportional to 551,877.20, 827,815.80 and 462,647.60

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Solution

The fourth proportional to 551,877.20, 827,815.80 and 462,647.60 is: 693,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,877.20 : 827,815.80 = 462,647.60 : x
  2. Step 2: Convert to fraction form
    551,877.20/827,815.80 = 462,647.60/x
  3. Step 3: Cross multiply
    551,877.20x = 827,815.80 × 462,647.60
  4. Step 4: Simplify right side
    551,877.20x = 382,986,993,112.08
  5. Step 5: Solve for x
    x = 382,986,993,112.08/551,877.20
  6. Step 6: Final answer
    x = 693,971.40

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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.