Home / 2,139,518.82-3,209,425.91-623,214.36

Finding the Fourth Proportional to 2,139,518.82, 3,209,425.91 and 623,214.36

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Solution

The fourth proportional to 2,139,518.82, 3,209,425.91 and 623,214.36 is: 934,864.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,518.82 : 3,209,425.91 = 623,214.36 : x
  2. Step 2: Convert to fraction form
    2,139,518.82/3,209,425.91 = 623,214.36/x
  3. Step 3: Cross multiply
    2,139,518.82x = 3,209,425.91 × 623,214.36
  4. Step 4: Simplify right side
    2,139,518.82x = 2,000,160,311,352.00
  5. Step 5: Solve for x
    x = 2,000,160,311,352.00/2,139,518.82
  6. Step 6: Final answer
    x = 934,864.56

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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.