Finding the Fourth Proportional to 1,543,439.49, 2,315,246.71 and 478,632.93
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Solution
The fourth proportional to 1,543,439.49, 2,315,246.71 and 478,632.93 is: 717,976.52
Step by Step Solution
- Step 1: Write the proportion equation
1,543,439.49 : 2,315,246.71 = 478,632.93 : x - Step 2: Convert to fraction form
1,543,439.49/2,315,246.71 = 478,632.93/x - Step 3: Cross multiply
1,543,439.49x = 2,315,246.71 × 478,632.93 - Step 4: Simplify right side
1,543,439.49x = 1,108,153,311,888.63 - Step 5: Solve for x
x = 1,108,153,311,888.63/1,543,439.49 - Step 6: Final answer
x = 717,976.52
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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.