Finding the Fourth Proportional to 823,686.08, 1,136,461.76 and 565,640.64
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Solution
The fourth proportional to 823,686.08, 1,136,461.76 and 565,640.64 is: 780,429.55
Step by Step Solution
- Step 1: Write the proportion equation
823,686.08 : 1,136,461.76 = 565,640.64 : x - Step 2: Convert to fraction form
823,686.08/1,136,461.76 = 565,640.64/x - Step 3: Cross multiply
823,686.08x = 1,136,461.76 × 565,640.64 - Step 4: Simplify right side
823,686.08x = 642,828,957,261.93 - Step 5: Solve for x
x = 642,828,957,261.93/823,686.08 - Step 6: Final answer
x = 780,429.55
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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.