Finding the Fourth Proportional to 1,425,394.17, 2,138,535.95 and 478,805.94
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Solution
The fourth proportional to 1,425,394.17, 2,138,535.95 and 478,805.94 is: 718,358.29
Step by Step Solution
- Step 1: Write the proportion equation
1,425,394.17 : 2,138,535.95 = 478,805.94 : x - Step 2: Convert to fraction form
1,425,394.17/2,138,535.95 = 478,805.94/x - Step 3: Cross multiply
1,425,394.17x = 2,138,535.95 × 478,805.94 - Step 4: Simplify right side
1,425,394.17x = 1,023,943,715,763.54 - Step 5: Solve for x
x = 1,023,943,715,763.54/1,425,394.17 - Step 6: Final answer
x = 718,358.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.