Finding the Fourth Proportional to 557,367.74, 769,141.76 and 315,652.06
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Solution
The fourth proportional to 557,367.74, 769,141.76 and 315,652.06 is: 435,585.28
Step by Step Solution
- Step 1: Write the proportion equation
557,367.74 : 769,141.76 = 315,652.06 : x - Step 2: Convert to fraction form
557,367.74/769,141.76 = 315,652.06/x - Step 3: Cross multiply
557,367.74x = 769,141.76 × 315,652.06 - Step 4: Simplify right side
557,367.74x = 242,781,180,976.03 - Step 5: Solve for x
x = 242,781,180,976.03/557,367.74 - Step 6: Final answer
x = 435,585.28
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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.