Finding the Fourth Proportional to 1,115,512.74, 1,539,424.20 and 606,215.52
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Solution
The fourth proportional to 1,115,512.74, 1,539,424.20 and 606,215.52 is: 836,586.45
Step by Step Solution
- Step 1: Write the proportion equation
1,115,512.74 : 1,539,424.20 = 606,215.52 : x - Step 2: Convert to fraction form
1,115,512.74/1,539,424.20 = 606,215.52/x - Step 3: Cross multiply
1,115,512.74x = 1,539,424.20 × 606,215.52 - Step 4: Simplify right side
1,115,512.74x = 933,222,841,903.58 - Step 5: Solve for x
x = 933,222,841,903.58/1,115,512.74 - Step 6: Final answer
x = 836,586.45
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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.