Finding the Fourth Proportional to 1,747,603.70, 2,621,405.55 and 1,187,731.70
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Solution
The fourth proportional to 1,747,603.70, 2,621,405.55 and 1,187,731.70 is: 1,781,597.55
Step by Step Solution
- Step 1: Write the proportion equation
1,747,603.70 : 2,621,405.55 = 1,187,731.70 : x - Step 2: Convert to fraction form
1,747,603.70/2,621,405.55 = 1,187,731.70/x - Step 3: Cross multiply
1,747,603.70x = 2,621,405.55 × 1,187,731.70 - Step 4: Simplify right side
1,747,603.70x = 3,113,526,470,290.93 - Step 5: Solve for x
x = 3,113,526,470,290.93/1,747,603.70 - Step 6: Final answer
x = 1,781,597.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.