Finding the Fourth Proportional to 857,574.68, 1,284,646.94 and 515,829.41
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Solution
The fourth proportional to 857,574.68, 1,284,646.94 and 515,829.41 is: 772,712.50
Step by Step Solution
- Step 1: Write the proportion equation
857,574.68 : 1,284,646.94 = 515,829.41 : x - Step 2: Convert to fraction form
857,574.68/1,284,646.94 = 515,829.41/x - Step 3: Cross multiply
857,574.68x = 1,284,646.94 × 515,829.41 - Step 4: Simplify right side
857,574.68x = 662,658,670,867.91 - Step 5: Solve for x
x = 662,658,670,867.91/857,574.68 - Step 6: Final answer
x = 772,712.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.