Finding the Fourth Proportional to 872,453.16, 1,203,987.24 and 490,483.08
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Solution
The fourth proportional to 872,453.16, 1,203,987.24 and 490,483.08 is: 676,867.71
Step by Step Solution
- Step 1: Write the proportion equation
872,453.16 : 1,203,987.24 = 490,483.08 : x - Step 2: Convert to fraction form
872,453.16/1,203,987.24 = 490,483.08/x - Step 3: Cross multiply
872,453.16x = 1,203,987.24 × 490,483.08 - Step 4: Simplify right side
872,453.16x = 590,535,369,755.90 - Step 5: Solve for x
x = 590,535,369,755.90/872,453.16 - Step 6: Final answer
x = 676,867.71
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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.