Finding the Fourth Proportional to 868,487, 1,198,512.06 and 486,513.68
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Solution
The fourth proportional to 868,487, 1,198,512.06 and 486,513.68 is: 671,388.88
Step by Step Solution
- Step 1: Write the proportion equation
868,487 : 1,198,512.06 = 486,513.68 : x - Step 2: Convert to fraction form
868,487/1,198,512.06 = 486,513.68/x - Step 3: Cross multiply
868,487x = 1,198,512.06 × 486,513.68 - Step 4: Simplify right side
868,487x = 583,092,512,834.98 - Step 5: Solve for x
x = 583,092,512,834.98/868,487 - Step 6: Final answer
x = 671,388.88
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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.