Home / 3,139,695.40-4,707,239.10-1,245,500.20

Finding the Fourth Proportional to 3,139,695.40, 4,707,239.10 and 1,245,500.20

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Solution

The fourth proportional to 3,139,695.40, 4,707,239.10 and 1,245,500.20 is: 1,867,336.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139,695.40 : 4,707,239.10 = 1,245,500.20 : x
  2. Step 2: Convert to fraction form
    3,139,695.40/4,707,239.10 = 1,245,500.20/x
  3. Step 3: Cross multiply
    3,139,695.40x = 4,707,239.10 × 1,245,500.20
  4. Step 4: Simplify right side
    3,139,695.40x = 5,862,867,240,497.82
  5. Step 5: Solve for x
    x = 5,862,867,240,497.82/3,139,695.40
  6. Step 6: Final answer
    x = 1,867,336.32

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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.