Finding the Fourth Proportional to 708,490.93, 977,709.53 and 386,193.96
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Solution
The fourth proportional to 708,490.93, 977,709.53 and 386,193.96 is: 532,943.32
Step by Step Solution
- Step 1: Write the proportion equation
708,490.93 : 977,709.53 = 386,193.96 : x - Step 2: Convert to fraction form
708,490.93/977,709.53 = 386,193.96/x - Step 3: Cross multiply
708,490.93x = 977,709.53 × 386,193.96 - Step 4: Simplify right side
708,490.93x = 377,585,511,710.68 - Step 5: Solve for x
x = 377,585,511,710.68/708,490.93 - Step 6: Final answer
x = 532,943.32
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1.5x scale
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.