Home / 816,280.11-1,226,191.65-690,173.60

Finding the Fourth Proportional to 816,280.11, 1,226,191.65 and 690,173.60

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Solution

The fourth proportional to 816,280.11, 1,226,191.65 and 690,173.60 is: 1,036,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,280.11 : 1,226,191.65 = 690,173.60 : x
  2. Step 2: Convert to fraction form
    816,280.11/1,226,191.65 = 690,173.60/x
  3. Step 3: Cross multiply
    816,280.11x = 1,226,191.65 × 690,173.60
  4. Step 4: Simplify right side
    816,280.11x = 846,285,099,239.48
  5. Step 5: Solve for x
    x = 846,285,099,239.48/816,280.11
  6. Step 6: Final answer
    x = 1,036,758.20

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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.