Finding the Fourth Proportional to 1,590,564.78, 2,194,913.70 and 865,415.43
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Solution
The fourth proportional to 1,590,564.78, 2,194,913.70 and 865,415.43 is: 1,194,237.55
Step by Step Solution
- Step 1: Write the proportion equation
1,590,564.78 : 2,194,913.70 = 865,415.43 : x - Step 2: Convert to fraction form
1,590,564.78/2,194,913.70 = 865,415.43/x - Step 3: Cross multiply
1,590,564.78x = 2,194,913.70 × 865,415.43 - Step 4: Simplify right side
1,590,564.78x = 1,899,512,183,498.39 - Step 5: Solve for x
x = 1,899,512,183,498.39/1,590,564.78 - Step 6: Final answer
x = 1,194,237.55
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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.