Finding the Fourth Proportional to 1,509,139.68, 2,081,998.14 and 855,627.84
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Solution
The fourth proportional to 1,509,139.68, 2,081,998.14 and 855,627.84 is: 1,180,417.95
Step by Step Solution
- Step 1: Write the proportion equation
1,509,139.68 : 2,081,998.14 = 855,627.84 : x - Step 2: Convert to fraction form
1,509,139.68/2,081,998.14 = 855,627.84/x - Step 3: Cross multiply
1,509,139.68x = 2,081,998.14 × 855,627.84 - Step 4: Simplify right side
1,509,139.68x = 1,781,415,571,412.22 - Step 5: Solve for x
x = 1,781,415,571,412.22/1,509,139.68 - Step 6: Final answer
x = 1,180,417.95
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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.