Home / 3,178,995.40-4,768,493.10-2,830,630.60

Finding the Fourth Proportional to 3,178,995.40, 4,768,493.10 and 2,830,630.60

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Solution

The fourth proportional to 3,178,995.40, 4,768,493.10 and 2,830,630.60 is: 4,245,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,995.40 : 4,768,493.10 = 2,830,630.60 : x
  2. Step 2: Convert to fraction form
    3,178,995.40/4,768,493.10 = 2,830,630.60/x
  3. Step 3: Cross multiply
    3,178,995.40x = 4,768,493.10 × 2,830,630.60
  4. Step 4: Simplify right side
    3,178,995.40x = 13,497,842,484,748.86
  5. Step 5: Solve for x
    x = 13,497,842,484,748.86/3,178,995.40
  6. Step 6: Final answer
    x = 4,245,945.90

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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.