Finding the Fourth Proportional to 1,115,749.36, 1,539,701.75 and 632,359.18
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Solution
The fourth proportional to 1,115,749.36, 1,539,701.75 and 632,359.18 is: 872,637.32
Step by Step Solution
- Step 1: Write the proportion equation
1,115,749.36 : 1,539,701.75 = 632,359.18 : x - Step 2: Convert to fraction form
1,115,749.36/1,539,701.75 = 632,359.18/x - Step 3: Cross multiply
1,115,749.36x = 1,539,701.75 × 632,359.18 - Step 4: Simplify right side
1,115,749.36x = 973,644,533,806.21 - Step 5: Solve for x
x = 973,644,533,806.21/1,115,749.36 - Step 6: Final answer
x = 872,637.32
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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.