Finding the Fourth Proportional to 805,355.44, 1,208,966.28 and 432,107.44
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Solution
The fourth proportional to 805,355.44, 1,208,966.28 and 432,107.44 is: 648,661.82
Step by Step Solution
- Step 1: Write the proportion equation
805,355.44 : 1,208,966.28 = 432,107.44 : x - Step 2: Convert to fraction form
805,355.44/1,208,966.28 = 432,107.44/x - Step 3: Cross multiply
805,355.44x = 1,208,966.28 × 432,107.44 - Step 4: Simplify right side
805,355.44x = 522,403,324,297.12 - Step 5: Solve for x
x = 522,403,324,297.12/805,355.44 - Step 6: Final answer
x = 648,661.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.