Home / 3,120,492.12-4,681,317.06-990,000.60

Finding the Fourth Proportional to 3,120,492.12, 4,681,317.06 and 990,000.60

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Solution

The fourth proportional to 3,120,492.12, 4,681,317.06 and 990,000.60 is: 1,485,184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,492.12 : 4,681,317.06 = 990,000.60 : x
  2. Step 2: Convert to fraction form
    3,120,492.12/4,681,317.06 = 990,000.60/x
  3. Step 3: Cross multiply
    3,120,492.12x = 4,681,317.06 × 990,000.60
  4. Step 4: Simplify right side
    3,120,492.12x = 4,634,506,698,190.24
  5. Step 5: Solve for x
    x = 4,634,506,698,190.24/3,120,492.12
  6. Step 6: Final answer
    x = 1,485,184.55

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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.