Finding the Fourth Proportional to 1,420,657.68, 1,960,974.81 and 1,130,800.94
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Solution
The fourth proportional to 1,420,657.68, 1,960,974.81 and 1,130,800.94 is: 1,560,877.18
Step by Step Solution
- Step 1: Write the proportion equation
1,420,657.68 : 1,960,974.81 = 1,130,800.94 : x - Step 2: Convert to fraction form
1,420,657.68/1,960,974.81 = 1,130,800.94/x - Step 3: Cross multiply
1,420,657.68x = 1,960,974.81 × 1,130,800.94 - Step 4: Simplify right side
1,420,657.68x = 2,217,472,148,659.45 - Step 5: Solve for x
x = 2,217,472,148,659.45/1,420,657.68 - Step 6: Final answer
x = 1,560,877.18
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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.