Home / 3,120,508.12-4,680,284.10-990,316.12

Finding the Fourth Proportional to 3,120,508.12, 4,680,284.10 and 990,316.12

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Solution

The fourth proportional to 3,120,508.12, 4,680,284.10 and 990,316.12 is: 1,485,322.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,508.12 : 4,680,284.10 = 990,316.12 : x
  2. Step 2: Convert to fraction form
    3,120,508.12/4,680,284.10 = 990,316.12/x
  3. Step 3: Cross multiply
    3,120,508.12x = 4,680,284.10 × 990,316.12
  4. Step 4: Simplify right side
    3,120,508.12x = 4,634,960,790,409.69
  5. Step 5: Solve for x
    x = 4,634,960,790,409.69/3,120,508.12
  6. Step 6: Final answer
    x = 1,485,322.46

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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.