Finding the Fourth Proportional to 857,556.84, 1,287,106.24 and 458,538.68
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Solution
The fourth proportional to 857,556.84, 1,287,106.24 and 458,538.68 is: 688,220.27
Step by Step Solution
- Step 1: Write the proportion equation
857,556.84 : 1,287,106.24 = 458,538.68 : x - Step 2: Convert to fraction form
857,556.84/1,287,106.24 = 458,538.68/x - Step 3: Cross multiply
857,556.84x = 1,287,106.24 × 458,538.68 - Step 4: Simplify right side
857,556.84x = 590,187,996,309.36 - Step 5: Solve for x
x = 590,187,996,309.36/857,556.84 - Step 6: Final answer
x = 688,220.27
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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.