Finding the Fourth Proportional to 525,708.72, 725,720.21 and 307,887.09
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Solution
The fourth proportional to 525,708.72, 725,720.21 and 307,887.09 is: 425,026.02
Step by Step Solution
- Step 1: Write the proportion equation
525,708.72 : 725,720.21 = 307,887.09 : x - Step 2: Convert to fraction form
525,708.72/725,720.21 = 307,887.09/x - Step 3: Cross multiply
525,708.72x = 725,720.21 × 307,887.09 - Step 4: Simplify right side
525,708.72x = 223,439,880,752.21 - Step 5: Solve for x
x = 223,439,880,752.21/525,708.72 - Step 6: Final answer
x = 425,026.02
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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.