Finding the Fourth Proportional to 1,556,413.12, 2,147,830.86 and 877,349.62
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Solution
The fourth proportional to 1,556,413.12, 2,147,830.86 and 877,349.62 is: 1,210,731.63
Step by Step Solution
- Step 1: Write the proportion equation
1,556,413.12 : 2,147,830.86 = 877,349.62 : x - Step 2: Convert to fraction form
1,556,413.12/2,147,830.86 = 877,349.62/x - Step 3: Cross multiply
1,556,413.12x = 2,147,830.86 × 877,349.62 - Step 4: Simplify right side
1,556,413.12x = 1,884,398,588,845.27 - Step 5: Solve for x
x = 1,884,398,588,845.27/1,556,413.12 - Step 6: Final answer
x = 1,210,731.63
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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.