Finding the Fourth Proportional to 1,031,707.21, 1,421,413.95 and 798,331.75
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Solution
The fourth proportional to 1,031,707.21, 1,421,413.95 and 798,331.75 is: 1,099,885.58
Step by Step Solution
- Step 1: Write the proportion equation
1,031,707.21 : 1,421,413.95 = 798,331.75 : x - Step 2: Convert to fraction form
1,031,707.21/1,421,413.95 = 798,331.75/x - Step 3: Cross multiply
1,031,707.21x = 1,421,413.95 × 798,331.75 - Step 4: Simplify right side
1,031,707.21x = 1,134,759,878,882.20 - Step 5: Solve for x
x = 1,134,759,878,882.20/1,031,707.21 - Step 6: Final answer
x = 1,099,885.58
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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.