Finding the Fourth Proportional to 1,368,631.95, 2,053,241.34 and 409,162.65
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Solution
The fourth proportional to 1,368,631.95, 2,053,241.34 and 409,162.65 is: 613,831.69
Step by Step Solution
- Step 1: Write the proportion equation
1,368,631.95 : 2,053,241.34 = 409,162.65 : x - Step 2: Convert to fraction form
1,368,631.95/2,053,241.34 = 409,162.65/x - Step 3: Cross multiply
1,368,631.95x = 2,053,241.34 × 409,162.65 - Step 4: Simplify right side
1,368,631.95x = 840,109,667,763.95 - Step 5: Solve for x
x = 840,109,667,763.95/1,368,631.95 - Step 6: Final answer
x = 613,831.69
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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.