Finding the Fourth Proportional to 1,731,920.12, 2,598,303.76 and 1,220,582.96
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Solution
The fourth proportional to 1,731,920.12, 2,598,303.76 and 1,220,582.96 is: 1,831,172.96
Step by Step Solution
- Step 1: Write the proportion equation
1,731,920.12 : 2,598,303.76 = 1,220,582.96 : x - Step 2: Convert to fraction form
1,731,920.12/2,598,303.76 = 1,220,582.96/x - Step 3: Cross multiply
1,731,920.12x = 2,598,303.76 × 1,220,582.96 - Step 4: Simplify right side
1,731,920.12x = 3,171,445,288,060.59 - Step 5: Solve for x
x = 3,171,445,288,060.59/1,731,920.12 - Step 6: Final answer
x = 1,831,172.96
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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.