Home / 869,041.40-1,199,400.74-481,942.92

Finding the Fourth Proportional to 869,041.40, 1,199,400.74 and 481,942.92

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Solution

The fourth proportional to 869,041.40, 1,199,400.74 and 481,942.92 is: 665,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,041.40 : 1,199,400.74 = 481,942.92 : x
  2. Step 2: Convert to fraction form
    869,041.40/1,199,400.74 = 481,942.92/x
  3. Step 3: Cross multiply
    869,041.40x = 1,199,400.74 × 481,942.92
  4. Step 4: Simplify right side
    869,041.40x = 578,042,694,885.76
  5. Step 5: Solve for x
    x = 578,042,694,885.76/869,041.40
  6. Step 6: Final answer
    x = 665,149.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.