Finding the Fourth Proportional to 528,700.44, 729,586.80 and 286,977.81
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Solution
The fourth proportional to 528,700.44, 729,586.80 and 286,977.81 is: 396,018.63
Step by Step Solution
- Step 1: Write the proportion equation
528,700.44 : 729,586.80 = 286,977.81 : x - Step 2: Convert to fraction form
528,700.44/729,586.80 = 286,977.81/x - Step 3: Cross multiply
528,700.44x = 729,586.80 × 286,977.81 - Step 4: Simplify right side
528,700.44x = 209,375,222,068.91 - Step 5: Solve for x
x = 209,375,222,068.91/528,700.44 - Step 6: Final answer
x = 396,018.63
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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.