Finding the Fourth Proportional to 1,230,115.95, 1,697,560.74 and 686,251.73
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Solution
The fourth proportional to 1,230,115.95, 1,697,560.74 and 686,251.73 is: 947,027.79
Step by Step Solution
- Step 1: Write the proportion equation
1,230,115.95 : 1,697,560.74 = 686,251.73 : x - Step 2: Convert to fraction form
1,230,115.95/1,697,560.74 = 686,251.73/x - Step 3: Cross multiply
1,230,115.95x = 1,697,560.74 × 686,251.73 - Step 4: Simplify right side
1,230,115.95x = 1,164,953,994,605.08 - Step 5: Solve for x
x = 1,164,953,994,605.08/1,230,115.95 - Step 6: Final answer
x = 947,027.79
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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.