Finding the Fourth Proportional to 708,477.36, 977,679.29 and 386,193.75
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Solution
The fourth proportional to 708,477.36, 977,679.29 and 386,193.75 is: 532,936.76
Step by Step Solution
- Step 1: Write the proportion equation
708,477.36 : 977,679.29 = 386,193.75 : x - Step 2: Convert to fraction form
708,477.36/977,679.29 = 386,193.75/x - Step 3: Cross multiply
708,477.36x = 977,679.29 × 386,193.75 - Step 4: Simplify right side
708,477.36x = 377,573,629,371.47 - Step 5: Solve for x
x = 377,573,629,371.47/708,477.36 - Step 6: Final answer
x = 532,936.76
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.