Home / 2,979,030.12-4,465,045.96-1,378,211.72

Finding the Fourth Proportional to 2,979,030.12, 4,465,045.96 and 1,378,211.72

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Solution

The fourth proportional to 2,979,030.12, 4,465,045.96 and 1,378,211.72 is: 2,065,698.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979,030.12 : 4,465,045.96 = 1,378,211.72 : x
  2. Step 2: Convert to fraction form
    2,979,030.12/4,465,045.96 = 1,378,211.72/x
  3. Step 3: Cross multiply
    2,979,030.12x = 4,465,045.96 × 1,378,211.72
  4. Step 4: Simplify right side
    2,979,030.12x = 6,153,778,672,410.65
  5. Step 5: Solve for x
    x = 6,153,778,672,410.65/2,979,030.12
  6. Step 6: Final answer
    x = 2,065,698.71

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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.