Finding the Fourth Proportional to 915,687.79, 1,263,625.21 and 507,788.60
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Solution
The fourth proportional to 915,687.79, 1,263,625.21 and 507,788.60 is: 700,734.99
Step by Step Solution
- Step 1: Write the proportion equation
915,687.79 : 1,263,625.21 = 507,788.60 : x - Step 2: Convert to fraction form
915,687.79/1,263,625.21 = 507,788.60/x - Step 3: Cross multiply
915,687.79x = 1,263,625.21 × 507,788.60 - Step 4: Simplify right side
915,687.79x = 641,654,470,627.22 - Step 5: Solve for x
x = 641,654,470,627.22/915,687.79 - Step 6: Final answer
x = 700,734.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.