Finding the Fourth Proportional to 871,689.08, 1,202,866.26 and 489,779.48
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Solution
The fourth proportional to 871,689.08, 1,202,866.26 and 489,779.48 is: 675,859.35
Step by Step Solution
- Step 1: Write the proportion equation
871,689.08 : 1,202,866.26 = 489,779.48 : x - Step 2: Convert to fraction form
871,689.08/1,202,866.26 = 489,779.48/x - Step 3: Cross multiply
871,689.08x = 1,202,866.26 × 489,779.48 - Step 4: Simplify right side
871,689.08x = 589,139,211,332.35 - Step 5: Solve for x
x = 589,139,211,332.35/871,689.08 - Step 6: Final answer
x = 675,859.35
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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.