Finding the Fourth Proportional to 1,115,804.66, 1,539,804.21 and 632,461.19
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Solution
The fourth proportional to 1,115,804.66, 1,539,804.21 and 632,461.19 is: 872,792.92
Step by Step Solution
- Step 1: Write the proportion equation
1,115,804.66 : 1,539,804.21 = 632,461.19 : x - Step 2: Convert to fraction form
1,115,804.66/1,539,804.21 = 632,461.19/x - Step 3: Cross multiply
1,115,804.66x = 1,539,804.21 × 632,461.19 - Step 4: Simplify right side
1,115,804.66x = 973,866,403,023.61 - Step 5: Solve for x
x = 973,866,403,023.61/1,115,804.66 - Step 6: Final answer
x = 872,792.92
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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.