Finding the Fourth Proportional to 640,437.48, 883,911.24 and 433,612.08
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Solution
The fourth proportional to 640,437.48, 883,911.24 and 433,612.08 is: 598,457.47
Step by Step Solution
- Step 1: Write the proportion equation
640,437.48 : 883,911.24 = 433,612.08 : x - Step 2: Convert to fraction form
640,437.48/883,911.24 = 433,612.08/x - Step 3: Cross multiply
640,437.48x = 883,911.24 × 433,612.08 - Step 4: Simplify right side
640,437.48x = 383,274,591,311.78 - Step 5: Solve for x
x = 383,274,591,311.78/640,437.48 - Step 6: Final answer
x = 598,457.47
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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.