Finding the Fourth Proportional to 778,161.77, 1,167,363.34 and 328,884.53
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Solution
The fourth proportional to 778,161.77, 1,167,363.34 and 328,884.53 is: 493,377.80
Step by Step Solution
- Step 1: Write the proportion equation
778,161.77 : 1,167,363.34 = 328,884.53 : x - Step 2: Convert to fraction form
778,161.77/1,167,363.34 = 328,884.53/x - Step 3: Cross multiply
778,161.77x = 1,167,363.34 × 328,884.53 - Step 4: Simplify right side
778,161.77x = 383,927,743,415.13 - Step 5: Solve for x
x = 383,927,743,415.13/778,161.77 - Step 6: Final answer
x = 493,377.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.