Finding the Fourth Proportional to 528,418.08, 729,210.96 and 286,699.68
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Solution
The fourth proportional to 528,418.08, 729,210.96 and 286,699.68 is: 395,642.31
Step by Step Solution
- Step 1: Write the proportion equation
528,418.08 : 729,210.96 = 286,699.68 : x - Step 2: Convert to fraction form
528,418.08/729,210.96 = 286,699.68/x - Step 3: Cross multiply
528,418.08x = 729,210.96 × 286,699.68 - Step 4: Simplify right side
528,418.08x = 209,064,548,884.49 - Step 5: Solve for x
x = 209,064,548,884.49/528,418.08 - Step 6: Final answer
x = 395,642.31
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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.