Home / 1,388,679.10-2,083,133.85-442,023.10

Finding the Fourth Proportional to 1,388,679.10, 2,083,133.85 and 442,023.10

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Solution

The fourth proportional to 1,388,679.10, 2,083,133.85 and 442,023.10 is: 663,071.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,679.10 : 2,083,133.85 = 442,023.10 : x
  2. Step 2: Convert to fraction form
    1,388,679.10/2,083,133.85 = 442,023.10/x
  3. Step 3: Cross multiply
    1,388,679.10x = 2,083,133.85 × 442,023.10
  4. Step 4: Simplify right side
    1,388,679.10x = 920,793,282,091.94
  5. Step 5: Solve for x
    x = 920,793,282,091.94/1,388,679.10
  6. Step 6: Final answer
    x = 663,071.32

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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.