Home / 768,986.39-1,153,212.46-427,950.26

Finding the Fourth Proportional to 768,986.39, 1,153,212.46 and 427,950.26

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Solution

The fourth proportional to 768,986.39, 1,153,212.46 and 427,950.26 is: 641,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,986.39 : 1,153,212.46 = 427,950.26 : x
  2. Step 2: Convert to fraction form
    768,986.39/1,153,212.46 = 427,950.26/x
  3. Step 3: Cross multiply
    768,986.39x = 1,153,212.46 × 427,950.26
  4. Step 4: Simplify right side
    768,986.39x = 493,517,567,262.32
  5. Step 5: Solve for x
    x = 493,517,567,262.32/768,986.39
  6. Step 6: Final answer
    x = 641,776.72

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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.