Home / 1,212,357.12-1,818,008.68-347,601.60

Finding the Fourth Proportional to 1,212,357.12, 1,818,008.68 and 347,601.60

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Solution

The fourth proportional to 1,212,357.12, 1,818,008.68 and 347,601.60 is: 521,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,357.12 : 1,818,008.68 = 347,601.60 : x
  2. Step 2: Convert to fraction form
    1,212,357.12/1,818,008.68 = 347,601.60/x
  3. Step 3: Cross multiply
    1,212,357.12x = 1,818,008.68 × 347,601.60
  4. Step 4: Simplify right side
    1,212,357.12x = 631,942,725,981.89
  5. Step 5: Solve for x
    x = 631,942,725,981.89/1,212,357.12
  6. Step 6: Final answer
    x = 521,251.30

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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.