Finding the Fourth Proportional to 528,173.48, 728,877.30 and 286,455.08
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Solution
The fourth proportional to 528,173.48, 728,877.30 and 286,455.08 is: 395,306.87
Step by Step Solution
- Step 1: Write the proportion equation
528,173.48 : 728,877.30 = 286,455.08 : x - Step 2: Convert to fraction form
528,173.48/728,877.30 = 286,455.08/x - Step 3: Cross multiply
528,173.48x = 728,877.30 × 286,455.08 - Step 4: Simplify right side
528,173.48x = 208,790,605,281.68 - Step 5: Solve for x
x = 208,790,605,281.68/528,173.48 - Step 6: Final answer
x = 395,306.87
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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.