Finding the Fourth Proportional to 1,717,770.70, 2,576,656.05 and 1,320,417.10
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Solution
The fourth proportional to 1,717,770.70, 2,576,656.05 and 1,320,417.10 is: 1,980,625.65
Step by Step Solution
- Step 1: Write the proportion equation
1,717,770.70 : 2,576,656.05 = 1,320,417.10 : x - Step 2: Convert to fraction form
1,717,770.70/2,576,656.05 = 1,320,417.10/x - Step 3: Cross multiply
1,717,770.70x = 2,576,656.05 × 1,320,417.10 - Step 4: Simplify right side
1,717,770.70x = 3,402,260,709,238.46 - Step 5: Solve for x
x = 3,402,260,709,238.46/1,717,770.70 - Step 6: Final answer
x = 1,980,625.65
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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.