Finding the Fourth Proportional to 611,854.97, 917,687.68 and 312,556.73
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Solution
The fourth proportional to 611,854.97, 917,687.68 and 312,556.73 is: 468,786.68
Step by Step Solution
- Step 1: Write the proportion equation
611,854.97 : 917,687.68 = 312,556.73 : x - Step 2: Convert to fraction form
611,854.97/917,687.68 = 312,556.73/x - Step 3: Cross multiply
611,854.97x = 917,687.68 × 312,556.73 - Step 4: Simplify right side
611,854.97x = 286,829,460,422.09 - Step 5: Solve for x
x = 286,829,460,422.09/611,854.97 - Step 6: Final answer
x = 468,786.68
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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.