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Finding the Fourth Proportional to 451,638, 623,259.49 and 260,651.39

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Solution

The fourth proportional to 451,638, 623,259.49 and 260,651.39 is: 359,698.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,638 : 623,259.49 = 260,651.39 : x
  2. Step 2: Convert to fraction form
    451,638/623,259.49 = 260,651.39/x
  3. Step 3: Cross multiply
    451,638x = 623,259.49 × 260,651.39
  4. Step 4: Simplify right side
    451,638x = 162,453,452,399.19
  5. Step 5: Solve for x
    x = 162,453,452,399.19/451,638
  6. Step 6: Final answer
    x = 359,698.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.