Finding the Fourth Proportional to 918,435.84, 1,267,456.72 and 504,990.08
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Solution
The fourth proportional to 918,435.84, 1,267,456.72 and 504,990.08 is: 696,894.70
Step by Step Solution
- Step 1: Write the proportion equation
918,435.84 : 1,267,456.72 = 504,990.08 : x - Step 2: Convert to fraction form
918,435.84/1,267,456.72 = 504,990.08/x - Step 3: Cross multiply
918,435.84x = 1,267,456.72 × 504,990.08 - Step 4: Simplify right side
918,435.84x = 640,053,070,429.34 - Step 5: Solve for x
x = 640,053,070,429.34/918,435.84 - Step 6: Final answer
x = 696,894.70
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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.