Finding the Fourth Proportional to 782,129.41, 1,078,781.01 and 717,805.98
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Solution
The fourth proportional to 782,129.41, 1,078,781.01 and 717,805.98 is: 990,060.53
Step by Step Solution
- Step 1: Write the proportion equation
782,129.41 : 1,078,781.01 = 717,805.98 : x - Step 2: Convert to fraction form
782,129.41/1,078,781.01 = 717,805.98/x - Step 3: Cross multiply
782,129.41x = 1,078,781.01 × 717,805.98 - Step 4: Simplify right side
782,129.41x = 774,355,460,088.44 - Step 5: Solve for x
x = 774,355,460,088.44/782,129.41 - Step 6: Final answer
x = 990,060.53
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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.