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Finding the Fourth Proportional to 617,311.80, 925,967.70 and 550,389.60

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Solution

The fourth proportional to 617,311.80, 925,967.70 and 550,389.60 is: 825,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,311.80 : 925,967.70 = 550,389.60 : x
  2. Step 2: Convert to fraction form
    617,311.80/925,967.70 = 550,389.60/x
  3. Step 3: Cross multiply
    617,311.80x = 925,967.70 × 550,389.60
  4. Step 4: Simplify right side
    617,311.80x = 509,642,992,015.92
  5. Step 5: Solve for x
    x = 509,642,992,015.92/617,311.80
  6. Step 6: Final answer
    x = 825,584.40

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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.