Finding the Fourth Proportional to 1,211,224.16, 1,817,117.47 and 412,512.62
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Solution
The fourth proportional to 1,211,224.16, 1,817,117.47 and 412,512.62 is: 618,864.72
Step by Step Solution
- Step 1: Write the proportion equation
1,211,224.16 : 1,817,117.47 = 412,512.62 : x - Step 2: Convert to fraction form
1,211,224.16/1,817,117.47 = 412,512.62/x - Step 3: Cross multiply
1,211,224.16x = 1,817,117.47 × 412,512.62 - Step 4: Simplify right side
1,211,224.16x = 749,583,896,319.65 - Step 5: Solve for x
x = 749,583,896,319.65/1,211,224.16 - Step 6: Final answer
x = 618,864.72
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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.