Finding the Fourth Proportional to 1,631,423.12, 2,251,631.40 and 943,117.52
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Solution
The fourth proportional to 1,631,423.12, 2,251,631.40 and 943,117.52 is: 1,301,656.81
Step by Step Solution
- Step 1: Write the proportion equation
1,631,423.12 : 2,251,631.40 = 943,117.52 : x - Step 2: Convert to fraction form
1,631,423.12/2,251,631.40 = 943,117.52/x - Step 3: Cross multiply
1,631,423.12x = 2,251,631.40 × 943,117.52 - Step 4: Simplify right side
1,631,423.12x = 2,123,553,021,922.13 - Step 5: Solve for x
x = 2,123,553,021,922.13/1,631,423.12 - Step 6: Final answer
x = 1,301,656.81
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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.