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Finding the Fourth Proportional to 1,408,609, 2,113,224.54 and 522,145

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Solution

The fourth proportional to 1,408,609, 2,113,224.54 and 522,145 is: 783,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,609 : 2,113,224.54 = 522,145 : x
  2. Step 2: Convert to fraction form
    1,408,609/2,113,224.54 = 522,145/x
  3. Step 3: Cross multiply
    1,408,609x = 2,113,224.54 × 522,145
  4. Step 4: Simplify right side
    1,408,609x = 1,103,409,627,438.30
  5. Step 5: Solve for x
    x = 1,103,409,627,438.30/1,408,609
  6. Step 6: Final answer
    x = 783,332.80

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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.