Home / 1,423,108.27-2,135,363.78-665,002.05

Finding the Fourth Proportional to 1,423,108.27, 2,135,363.78 and 665,002.05

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Solution

The fourth proportional to 1,423,108.27, 2,135,363.78 and 665,002.05 is: 997,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,108.27 : 2,135,363.78 = 665,002.05 : x
  2. Step 2: Convert to fraction form
    1,423,108.27/2,135,363.78 = 665,002.05/x
  3. Step 3: Cross multiply
    1,423,108.27x = 2,135,363.78 × 665,002.05
  4. Step 4: Simplify right side
    1,423,108.27x = 1,420,021,291,195.75
  5. Step 5: Solve for x
    x = 1,420,021,291,195.75/1,423,108.27
  6. Step 6: Final answer
    x = 997,830.82

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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.