Finding the Fourth Proportional to 1,689,961.20, 2,530,276.20 and 1,316,713.20
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Solution
The fourth proportional to 1,689,961.20, 2,530,276.20 and 1,316,713.20 is: 1,971,434.65
Step by Step Solution
- Step 1: Write the proportion equation
1,689,961.20 : 2,530,276.20 = 1,316,713.20 : x - Step 2: Convert to fraction form
1,689,961.20/2,530,276.20 = 1,316,713.20/x - Step 3: Cross multiply
1,689,961.20x = 2,530,276.20 × 1,316,713.20 - Step 4: Simplify right side
1,689,961.20x = 3,331,648,072,185.84 - Step 5: Solve for x
x = 3,331,648,072,185.84/1,689,961.20 - Step 6: Final answer
x = 1,971,434.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.