Finding the Fourth Proportional to 879,269.97, 1,318,215.95 and 347,189.28
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Solution
The fourth proportional to 879,269.97, 1,318,215.95 and 347,189.28 is: 520,511.86
Step by Step Solution
- Step 1: Write the proportion equation
879,269.97 : 1,318,215.95 = 347,189.28 : x - Step 2: Convert to fraction form
879,269.97/1,318,215.95 = 347,189.28/x - Step 3: Cross multiply
879,269.97x = 1,318,215.95 × 347,189.28 - Step 4: Simplify right side
879,269.97x = 457,670,444,829.07 - Step 5: Solve for x
x = 457,670,444,829.07/879,269.97 - Step 6: Final answer
x = 520,511.86
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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.