Home / 1,295,200.20-1,942,857.90-442,259.40

Finding the Fourth Proportional to 1,295,200.20, 1,942,857.90 and 442,259.40

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Solution

The fourth proportional to 1,295,200.20, 1,942,857.90 and 442,259.40 is: 663,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,200.20 : 1,942,857.90 = 442,259.40 : x
  2. Step 2: Convert to fraction form
    1,295,200.20/1,942,857.90 = 442,259.40/x
  3. Step 3: Cross multiply
    1,295,200.20x = 1,942,857.90 × 442,259.40
  4. Step 4: Simplify right side
    1,295,200.20x = 859,247,169,139.26
  5. Step 5: Solve for x
    x = 859,247,169,139.26/1,295,200.20
  6. Step 6: Final answer
    x = 663,408.77

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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.