Finding the Fourth Proportional to 1,292,026.50, 1,782,996.57 and 719,201.99
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Solution
The fourth proportional to 1,292,026.50, 1,782,996.57 and 719,201.99 is: 992,498.75
Step by Step Solution
- Step 1: Write the proportion equation
1,292,026.50 : 1,782,996.57 = 719,201.99 : x - Step 2: Convert to fraction form
1,292,026.50/1,782,996.57 = 719,201.99/x - Step 3: Cross multiply
1,292,026.50x = 1,782,996.57 × 719,201.99 - Step 4: Simplify right side
1,292,026.50x = 1,282,334,681,307.17 - Step 5: Solve for x
x = 1,282,334,681,307.17/1,292,026.50 - Step 6: Final answer
x = 992,498.75
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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.