Finding the Fourth Proportional to 1,421,425.68, 1,961,508.24 and 776,868.24
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Solution
The fourth proportional to 1,421,425.68, 1,961,508.24 and 776,868.24 is: 1,072,045.82
Step by Step Solution
- Step 1: Write the proportion equation
1,421,425.68 : 1,961,508.24 = 776,868.24 : x - Step 2: Convert to fraction form
1,421,425.68/1,961,508.24 = 776,868.24/x - Step 3: Cross multiply
1,421,425.68x = 1,961,508.24 × 776,868.24 - Step 4: Simplify right side
1,421,425.68x = 1,523,833,454,154.30 - Step 5: Solve for x
x = 1,523,833,454,154.30/1,421,425.68 - Step 6: Final answer
x = 1,072,045.82
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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.