Finding the Fourth Proportional to 640,495.72, 883,887.56 and 350,107.68
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Solution
The fourth proportional to 640,495.72, 883,887.56 and 350,107.68 is: 483,150.49
Step by Step Solution
- Step 1: Write the proportion equation
640,495.72 : 883,887.56 = 350,107.68 : x - Step 2: Convert to fraction form
640,495.72/883,887.56 = 350,107.68/x - Step 3: Cross multiply
640,495.72x = 883,887.56 × 350,107.68 - Step 4: Simplify right side
640,495.72x = 309,455,823,012.46 - Step 5: Solve for x
x = 309,455,823,012.46/640,495.72 - Step 6: Final answer
x = 483,150.49
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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.