Finding the Fourth Proportional to 898,116.84, 1,239,400.92 and 612,136.35
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Solution
The fourth proportional to 898,116.84, 1,239,400.92 and 612,136.35 is: 844,747.95
Step by Step Solution
- Step 1: Write the proportion equation
898,116.84 : 1,239,400.92 = 612,136.35 : x - Step 2: Convert to fraction form
898,116.84/1,239,400.92 = 612,136.35/x - Step 3: Cross multiply
898,116.84x = 1,239,400.92 × 612,136.35 - Step 4: Simplify right side
898,116.84x = 758,682,355,355.44 - Step 5: Solve for x
x = 758,682,355,355.44/898,116.84 - Step 6: Final answer
x = 844,747.95
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1.5x scale
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.