Home / 3,620,246.40-5,430,369.60-1,913,730.30

Finding the Fourth Proportional to 3,620,246.40, 5,430,369.60 and 1,913,730.30

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Solution

The fourth proportional to 3,620,246.40, 5,430,369.60 and 1,913,730.30 is: 2,870,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620,246.40 : 5,430,369.60 = 1,913,730.30 : x
  2. Step 2: Convert to fraction form
    3,620,246.40/5,430,369.60 = 1,913,730.30/x
  3. Step 3: Cross multiply
    3,620,246.40x = 5,430,369.60 × 1,913,730.30
  4. Step 4: Simplify right side
    3,620,246.40x = 10,392,262,843,718.88
  5. Step 5: Solve for x
    x = 10,392,262,843,718.88/3,620,246.40
  6. Step 6: Final answer
    x = 2,870,595.45

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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.