Finding the Fourth Proportional to 2,298,235.92, 3,172,123.80 and 1,331,209.68
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Solution
The fourth proportional to 2,298,235.92, 3,172,123.80 and 1,331,209.68 is: 1,837,392.70
Step by Step Solution
- Step 1: Write the proportion equation
2,298,235.92 : 3,172,123.80 = 1,331,209.68 : x - Step 2: Convert to fraction form
2,298,235.92/3,172,123.80 = 1,331,209.68/x - Step 3: Cross multiply
2,298,235.92x = 3,172,123.80 × 1,331,209.68 - Step 4: Simplify right side
2,298,235.92x = 4,222,761,908,718.38 - Step 5: Solve for x
x = 4,222,761,908,718.38/2,298,235.92 - Step 6: Final answer
x = 1,837,392.70
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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.