Finding the Fourth Proportional to 2,515,898.70, 3,471,944.40 and 1,369,983.60
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Solution
The fourth proportional to 2,515,898.70, 3,471,944.40 and 1,369,983.60 is: 1,890,579.65
Step by Step Solution
- Step 1: Write the proportion equation
2,515,898.70 : 3,471,944.40 = 1,369,983.60 : x - Step 2: Convert to fraction form
2,515,898.70/3,471,944.40 = 1,369,983.60/x - Step 3: Cross multiply
2,515,898.70x = 3,471,944.40 × 1,369,983.60 - Step 4: Simplify right side
2,515,898.70x = 4,756,506,888,111.84 - Step 5: Solve for x
x = 4,756,506,888,111.84/2,515,898.70 - Step 6: Final answer
x = 1,890,579.65
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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.