Finding the Fourth Proportional to 557,925.08, 769,972.38 and 312,932.84
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Solution
The fourth proportional to 557,925.08, 769,972.38 and 312,932.84 is: 431,867.38
Step by Step Solution
- Step 1: Write the proportion equation
557,925.08 : 769,972.38 = 312,932.84 : x - Step 2: Convert to fraction form
557,925.08/769,972.38 = 312,932.84/x - Step 3: Cross multiply
557,925.08x = 769,972.38 × 312,932.84 - Step 4: Simplify right side
557,925.08x = 240,949,643,594.96 - Step 5: Solve for x
x = 240,949,643,594.96/557,925.08 - Step 6: Final answer
x = 431,867.38
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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.