Finding the Fourth Proportional to 916,085.97, 1,264,206.29 and 508,214.39
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Solution
The fourth proportional to 916,085.97, 1,264,206.29 and 508,214.39 is: 701,340.09
Step by Step Solution
- Step 1: Write the proportion equation
916,085.97 : 1,264,206.29 = 508,214.39 : x - Step 2: Convert to fraction form
916,085.97/1,264,206.29 = 508,214.39/x - Step 3: Cross multiply
916,085.97x = 1,264,206.29 × 508,214.39 - Step 4: Simplify right side
916,085.97x = 642,487,819,644.41 - Step 5: Solve for x
x = 642,487,819,644.41/916,085.97 - Step 6: Final answer
x = 701,340.09
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1.5x scale
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.