Finding the Fourth Proportional to 916,219.76, 1,264,340.61 and 508,317.26
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Solution
The fourth proportional to 916,219.76, 1,264,340.61 and 508,317.26 is: 701,454.15
Step by Step Solution
- Step 1: Write the proportion equation
916,219.76 : 1,264,340.61 = 508,317.26 : x - Step 2: Convert to fraction form
916,219.76/1,264,340.61 = 508,317.26/x - Step 3: Cross multiply
916,219.76x = 1,264,340.61 × 508,317.26 - Step 4: Simplify right side
916,219.76x = 642,686,148,260.23 - Step 5: Solve for x
x = 642,686,148,260.23/916,219.76 - Step 6: Final answer
x = 701,454.15
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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.