Finding the Fourth Proportional to 528,560.47, 729,413.93 and 286,843.08
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Solution
The fourth proportional to 528,560.47, 729,413.93 and 286,843.08 is: 395,843.71
Step by Step Solution
- Step 1: Write the proportion equation
528,560.47 : 729,413.93 = 286,843.08 : x - Step 2: Convert to fraction form
528,560.47/729,413.93 = 286,843.08/x - Step 3: Cross multiply
528,560.47x = 729,413.93 × 286,843.08 - Step 4: Simplify right side
528,560.47x = 209,227,336,841.89 - Step 5: Solve for x
x = 209,227,336,841.89/528,560.47 - Step 6: Final answer
x = 395,843.71
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1.5x scale
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.