Finding the Fourth Proportional to 570,413.35, 787,176.26 and 315,759.07
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Solution
The fourth proportional to 570,413.35, 787,176.26 and 315,759.07 is: 435,750.75
Step by Step Solution
- Step 1: Write the proportion equation
570,413.35 : 787,176.26 = 315,759.07 : x - Step 2: Convert to fraction form
570,413.35/787,176.26 = 315,759.07/x - Step 3: Cross multiply
570,413.35x = 787,176.26 × 315,759.07 - Step 4: Simplify right side
570,413.35x = 248,558,043,783.68 - Step 5: Solve for x
x = 248,558,043,783.68/570,413.35 - Step 6: Final answer
x = 435,750.75
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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.