Finding the Fourth Proportional to 640,367.26, 883,682.95 and 368,477.20
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Solution
The fourth proportional to 640,367.26, 883,682.95 and 368,477.20 is: 508,484.79
Step by Step Solution
- Step 1: Write the proportion equation
640,367.26 : 883,682.95 = 368,477.20 : x - Step 2: Convert to fraction form
640,367.26/883,682.95 = 368,477.20/x - Step 3: Cross multiply
640,367.26x = 883,682.95 × 368,477.20 - Step 4: Simplify right side
640,367.26x = 325,617,013,764.13 - Step 5: Solve for x
x = 325,617,013,764.13/640,367.26 - Step 6: Final answer
x = 508,484.79
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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.