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Finding the Fourth Proportional to 406,511.10, 606,866.55 and 379,496.11

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Solution

The fourth proportional to 406,511.10, 606,866.55 and 379,496.11 is: 566,536.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,511.10 : 606,866.55 = 379,496.11 : x
  2. Step 2: Convert to fraction form
    406,511.10/606,866.55 = 379,496.11/x
  3. Step 3: Cross multiply
    406,511.10x = 606,866.55 × 379,496.11
  4. Step 4: Simplify right side
    406,511.10x = 230,303,495,014.12
  5. Step 5: Solve for x
    x = 230,303,495,014.12/406,511.10
  6. Step 6: Final answer
    x = 566,536.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.