Finding the Fourth Proportional to 1,671,420.21, 2,301,395.36 and 1,305,375.95
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Solution
The fourth proportional to 1,671,420.21, 2,301,395.36 and 1,305,375.95 is: 1,797,385.31
Step by Step Solution
- Step 1: Write the proportion equation
1,671,420.21 : 2,301,395.36 = 1,305,375.95 : x - Step 2: Convert to fraction form
1,671,420.21/2,301,395.36 = 1,305,375.95/x - Step 3: Cross multiply
1,671,420.21x = 2,301,395.36 × 1,305,375.95 - Step 4: Simplify right side
1,671,420.21x = 3,004,186,136,351.74 - Step 5: Solve for x
x = 3,004,186,136,351.74/1,671,420.21 - Step 6: Final answer
x = 1,797,385.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.