Finding the Fourth Proportional to 911,966.49, 1,368,244.98 and 438,590.34
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Solution
The fourth proportional to 911,966.49, 1,368,244.98 and 438,590.34 is: 658,027.50
Step by Step Solution
- Step 1: Write the proportion equation
911,966.49 : 1,368,244.98 = 438,590.34 : x - Step 2: Convert to fraction form
911,966.49/1,368,244.98 = 438,590.34/x - Step 3: Cross multiply
911,966.49x = 1,368,244.98 × 438,590.34 - Step 4: Simplify right side
911,966.49x = 600,099,030,981.49 - Step 5: Solve for x
x = 600,099,030,981.49/911,966.49 - Step 6: Final answer
x = 658,027.50
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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.