Finding the Fourth Proportional to 1,688,644.19, 2,330,347.75 and 914,292.18
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Solution
The fourth proportional to 1,688,644.19, 2,330,347.75 and 914,292.18 is: 1,261,733.37
Step by Step Solution
- Step 1: Write the proportion equation
1,688,644.19 : 2,330,347.75 = 914,292.18 : x - Step 2: Convert to fraction form
1,688,644.19/2,330,347.75 = 914,292.18/x - Step 3: Cross multiply
1,688,644.19x = 2,330,347.75 × 914,292.18 - Step 4: Simplify right side
1,688,644.19x = 2,130,618,722,219.86 - Step 5: Solve for x
x = 2,130,618,722,219.86/1,688,644.19 - Step 6: Final answer
x = 1,261,733.37
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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.