Finding the Fourth Proportional to 448,490.79, 673,051.46 and 405,612.23
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Solution
The fourth proportional to 448,490.79, 673,051.46 and 405,612.23 is: 608,703.47
Step by Step Solution
- Step 1: Write the proportion equation
448,490.79 : 673,051.46 = 405,612.23 : x - Step 2: Convert to fraction form
448,490.79/673,051.46 = 405,612.23/x - Step 3: Cross multiply
448,490.79x = 673,051.46 × 405,612.23 - Step 4: Simplify right side
448,490.79x = 272,997,898,202.04 - Step 5: Solve for x
x = 272,997,898,202.04/448,490.79 - Step 6: Final answer
x = 608,703.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.