Finding the Fourth Proportional to 4,212,686.40, 6,319,685.16 and 1,372,137.36
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Solution
The fourth proportional to 4,212,686.40, 6,319,685.16 and 1,372,137.36 is: 2,058,419.57
Step by Step Solution
- Step 1: Write the proportion equation
4,212,686.40 : 6,319,685.16 = 1,372,137.36 : x - Step 2: Convert to fraction form
4,212,686.40/6,319,685.16 = 1,372,137.36/x - Step 3: Cross multiply
4,212,686.40x = 6,319,685.16 × 1,372,137.36 - Step 4: Simplify right side
4,212,686.40x = 8,671,476,111,473.58 - Step 5: Solve for x
x = 8,671,476,111,473.58/4,212,686.40 - Step 6: Final answer
x = 2,058,419.57
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.