Home / 1,120,199.84-1,679,805.12-321,300.08

Finding the Fourth Proportional to 1,120,199.84, 1,679,805.12 and 321,300.08

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Solution

The fourth proportional to 1,120,199.84, 1,679,805.12 and 321,300.08 is: 481,808.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,199.84 : 1,679,805.12 = 321,300.08 : x
  2. Step 2: Convert to fraction form
    1,120,199.84/1,679,805.12 = 321,300.08/x
  3. Step 3: Cross multiply
    1,120,199.84x = 1,679,805.12 × 321,300.08
  4. Step 4: Simplify right side
    1,120,199.84x = 539,721,519,440.41
  5. Step 5: Solve for x
    x = 539,721,519,440.41/1,120,199.84
  6. Step 6: Final answer
    x = 481,808.25

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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.