Finding the Fourth Proportional to 685,998.84, 1,029,113.98 and 236,599.50
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Solution
The fourth proportional to 685,998.84, 1,029,113.98 and 236,599.50 is: 354,939.16
Step by Step Solution
- Step 1: Write the proportion equation
685,998.84 : 1,029,113.98 = 236,599.50 : x - Step 2: Convert to fraction form
685,998.84/1,029,113.98 = 236,599.50/x - Step 3: Cross multiply
685,998.84x = 1,029,113.98 × 236,599.50 - Step 4: Simplify right side
685,998.84x = 243,487,853,111.01 - Step 5: Solve for x
x = 243,487,853,111.01/685,998.84 - Step 6: Final answer
x = 354,939.16
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1.5x scale
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.