Home / 1,120,008.96-1,680,097.68-321,284.16

Finding the Fourth Proportional to 1,120,008.96, 1,680,097.68 and 321,284.16

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Solution

The fourth proportional to 1,120,008.96, 1,680,097.68 and 321,284.16 is: 481,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,008.96 : 1,680,097.68 = 321,284.16 : x
  2. Step 2: Convert to fraction form
    1,120,008.96/1,680,097.68 = 321,284.16/x
  3. Step 3: Cross multiply
    1,120,008.96x = 1,680,097.68 × 321,284.16
  4. Step 4: Simplify right side
    1,120,008.96x = 539,788,771,836.75
  5. Step 5: Solve for x
    x = 539,788,771,836.75/1,120,008.96
  6. Step 6: Final answer
    x = 481,950.40

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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.