Finding the Fourth Proportional to 689,352.36, 951,283.42 and 383,420.09
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Solution
The fourth proportional to 689,352.36, 951,283.42 and 383,420.09 is: 529,107.02
Step by Step Solution
- Step 1: Write the proportion equation
689,352.36 : 951,283.42 = 383,420.09 : x - Step 2: Convert to fraction form
689,352.36/951,283.42 = 383,420.09/x - Step 3: Cross multiply
689,352.36x = 951,283.42 × 383,420.09 - Step 4: Simplify right side
689,352.36x = 364,741,174,511.91 - Step 5: Solve for x
x = 364,741,174,511.91/689,352.36 - Step 6: Final answer
x = 529,107.02
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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.