Home / 1,212,255.12-1,817,855.64-347,499.59

Finding the Fourth Proportional to 1,212,255.12, 1,817,855.64 and 347,499.59

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Solution

The fourth proportional to 1,212,255.12, 1,817,855.64 and 347,499.59 is: 521,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,255.12 : 1,817,855.64 = 347,499.59 : x
  2. Step 2: Convert to fraction form
    1,212,255.12/1,817,855.64 = 347,499.59/x
  3. Step 3: Cross multiply
    1,212,255.12x = 1,817,855.64 × 347,499.59
  4. Step 4: Simplify right side
    1,212,255.12x = 631,704,078,752.41
  5. Step 5: Solve for x
    x = 631,704,078,752.41/1,212,255.12
  6. Step 6: Final answer
    x = 521,098.30

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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.