Finding the Fourth Proportional to 640,395.41, 883,721.02 and 368,550.63
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Solution
The fourth proportional to 640,395.41, 883,721.02 and 368,550.63 is: 508,585.69
Step by Step Solution
- Step 1: Write the proportion equation
640,395.41 : 883,721.02 = 368,550.63 : x - Step 2: Convert to fraction form
640,395.41/883,721.02 = 368,550.63/x - Step 3: Cross multiply
640,395.41x = 883,721.02 × 368,550.63 - Step 4: Simplify right side
640,395.41x = 325,695,938,665.24 - Step 5: Solve for x
x = 325,695,938,665.24/640,395.41 - Step 6: Final answer
x = 508,585.69
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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.