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Finding the Fourth Proportional to 505,007.35, 757,511.88 and 404,445.00

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Solution

The fourth proportional to 505,007.35, 757,511.88 and 404,445.00 is: 606,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,007.35 : 757,511.88 = 404,445.00 : x
  2. Step 2: Convert to fraction form
    505,007.35/757,511.88 = 404,445.00/x
  3. Step 3: Cross multiply
    505,007.35x = 757,511.88 × 404,445.00
  4. Step 4: Simplify right side
    505,007.35x = 306,371,891,053.04
  5. Step 5: Solve for x
    x = 306,371,891,053.04/505,007.35
  6. Step 6: Final answer
    x = 606,668.19

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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.