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Finding the Fourth Proportional to 892,368.90, 1,339,318.80 and 360,271.80

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Solution

The fourth proportional to 892,368.90, 1,339,318.80 and 360,271.80 is: 540,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,368.90 : 1,339,318.80 = 360,271.80 : x
  2. Step 2: Convert to fraction form
    892,368.90/1,339,318.80 = 360,271.80/x
  3. Step 3: Cross multiply
    892,368.90x = 1,339,318.80 × 360,271.80
  4. Step 4: Simplify right side
    892,368.90x = 482,518,794,849.84
  5. Step 5: Solve for x
    x = 482,518,794,849.84/892,368.90
  6. Step 6: Final answer
    x = 540,716.73

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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.