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Finding the Fourth Proportional to 406,267.52, 609,173.36 and 278,328.33

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Solution

The fourth proportional to 406,267.52, 609,173.36 and 278,328.33 is: 417,336.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,267.52 : 609,173.36 = 278,328.33 : x
  2. Step 2: Convert to fraction form
    406,267.52/609,173.36 = 278,328.33/x
  3. Step 3: Cross multiply
    406,267.52x = 609,173.36 × 278,328.33
  4. Step 4: Simplify right side
    406,267.52x = 169,550,201,908.08
  5. Step 5: Solve for x
    x = 169,550,201,908.08/406,267.52
  6. Step 6: Final answer
    x = 417,336.34

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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.