Finding the Fourth Proportional to 722,943.53, 1,085,765.98 and 636,420.08
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Solution
The fourth proportional to 722,943.53, 1,085,765.98 and 636,420.08 is: 955,819.15
Step by Step Solution
- Step 1: Write the proportion equation
722,943.53 : 1,085,765.98 = 636,420.08 : x - Step 2: Convert to fraction form
722,943.53/1,085,765.98 = 636,420.08/x - Step 3: Cross multiply
722,943.53x = 1,085,765.98 × 636,420.08 - Step 4: Simplify right side
722,943.53x = 691,003,269,443.87 - Step 5: Solve for x
x = 691,003,269,443.87/722,943.53 - Step 6: Final answer
x = 955,819.15
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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.