Finding the Fourth Proportional to 557,445.92, 769,289.68 and 302,811.68
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Solution
The fourth proportional to 557,445.92, 769,289.68 and 302,811.68 is: 417,887.89
Step by Step Solution
- Step 1: Write the proportion equation
557,445.92 : 769,289.68 = 302,811.68 : x - Step 2: Convert to fraction form
557,445.92/769,289.68 = 302,811.68/x - Step 3: Cross multiply
557,445.92x = 769,289.68 × 302,811.68 - Step 4: Simplify right side
557,445.92x = 232,949,900,407.46 - Step 5: Solve for x
x = 232,949,900,407.46/557,445.92 - Step 6: Final answer
x = 417,887.89
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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.