Home / 1,206,811.20-1,809,682.20-407,875.80

Finding the Fourth Proportional to 1,206,811.20, 1,809,682.20 and 407,875.80

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Solution

The fourth proportional to 1,206,811.20, 1,809,682.20 and 407,875.80 is: 611,633.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,811.20 : 1,809,682.20 = 407,875.80 : x
  2. Step 2: Convert to fraction form
    1,206,811.20/1,809,682.20 = 407,875.80/x
  3. Step 3: Cross multiply
    1,206,811.20x = 1,809,682.20 × 407,875.80
  4. Step 4: Simplify right side
    1,206,811.20x = 738,125,575,070.76
  5. Step 5: Solve for x
    x = 738,125,575,070.76/1,206,811.20
  6. Step 6: Final answer
    x = 611,633.02

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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.