Finding the Fourth Proportional to 1,119,944.95, 1,679,924.12 and 278,496.70
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Solution
The fourth proportional to 1,119,944.95, 1,679,924.12 and 278,496.70 is: 417,746.71
Step by Step Solution
- Step 1: Write the proportion equation
1,119,944.95 : 1,679,924.12 = 278,496.70 : x - Step 2: Convert to fraction form
1,119,944.95/1,679,924.12 = 278,496.70/x - Step 3: Cross multiply
1,119,944.95x = 1,679,924.12 × 278,496.70 - Step 4: Simplify right side
1,119,944.95x = 467,853,318,078.11 - Step 5: Solve for x
x = 467,853,318,078.11/1,119,944.95 - Step 6: Final answer
x = 417,746.71
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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.