Finding the Fourth Proportional to 528,606.76, 729,482.58 and 286,891.48
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Solution
The fourth proportional to 528,606.76, 729,482.58 and 286,891.48 is: 395,913.09
Step by Step Solution
- Step 1: Write the proportion equation
528,606.76 : 729,482.58 = 286,891.48 : x - Step 2: Convert to fraction form
528,606.76/729,482.58 = 286,891.48/x - Step 3: Cross multiply
528,606.76x = 729,482.58 × 286,891.48 - Step 4: Simplify right side
528,606.76x = 209,282,337,010.42 - Step 5: Solve for x
x = 209,282,337,010.42/528,606.76 - Step 6: Final answer
x = 395,913.09
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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.