Finding the Fourth Proportional to 528,577.66, 729,426.80 and 299,130.68
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Solution
The fourth proportional to 528,577.66, 729,426.80 and 299,130.68 is: 412,794.47
Step by Step Solution
- Step 1: Write the proportion equation
528,577.66 : 729,426.80 = 299,130.68 : x - Step 2: Convert to fraction form
528,577.66/729,426.80 = 299,130.68/x - Step 3: Cross multiply
528,577.66x = 729,426.80 × 299,130.68 - Step 4: Simplify right side
528,577.66x = 218,193,934,694.22 - Step 5: Solve for x
x = 218,193,934,694.22/528,577.66 - Step 6: Final answer
x = 412,794.47
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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.