Finding the Fourth Proportional to 528,235.62, 728,959.79 and 286,513.00
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Solution
The fourth proportional to 528,235.62, 728,959.79 and 286,513.00 is: 395,385.03
Step by Step Solution
- Step 1: Write the proportion equation
528,235.62 : 728,959.79 = 286,513.00 : x - Step 2: Convert to fraction form
528,235.62/728,959.79 = 286,513.00/x - Step 3: Cross multiply
528,235.62x = 728,959.79 × 286,513.00 - Step 4: Simplify right side
528,235.62x = 208,856,452,667.47 - Step 5: Solve for x
x = 208,856,452,667.47/528,235.62 - Step 6: Final answer
x = 395,385.03
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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.