Finding the Fourth Proportional to 685,707.24, 1,028,725.08 and 286,125.75
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Solution
The fourth proportional to 685,707.24, 1,028,725.08 and 286,125.75 is: 429,257.15
Step by Step Solution
- Step 1: Write the proportion equation
685,707.24 : 1,028,725.08 = 286,125.75 : x - Step 2: Convert to fraction form
685,707.24/1,028,725.08 = 286,125.75/x - Step 3: Cross multiply
685,707.24x = 1,028,725.08 × 286,125.75 - Step 4: Simplify right side
685,707.24x = 294,344,735,058.81 - Step 5: Solve for x
x = 294,344,735,058.81/685,707.24 - Step 6: Final answer
x = 429,257.15
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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.