Home / 3,178,829.45-4,762,244.03-1,878,100.68

Finding the Fourth Proportional to 3,178,829.45, 4,762,244.03 and 1,878,100.68

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Solution

The fourth proportional to 3,178,829.45, 4,762,244.03 and 1,878,100.68 is: 2,813,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,829.45 : 4,762,244.03 = 1,878,100.68 : x
  2. Step 2: Convert to fraction form
    3,178,829.45/4,762,244.03 = 1,878,100.68/x
  3. Step 3: Cross multiply
    3,178,829.45x = 4,762,244.03 × 1,878,100.68
  4. Step 4: Simplify right side
    3,178,829.45x = 8,943,973,755,764.19
  5. Step 5: Solve for x
    x = 8,943,973,755,764.19/3,178,829.45
  6. Step 6: Final answer
    x = 2,813,606.05

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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.