Finding the Fourth Proportional to 1,687,372.84, 2,329,661.30 and 1,505,772.48
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Solution
The fourth proportional to 1,687,372.84, 2,329,661.30 and 1,505,772.48 is: 2,078,935.84
Step by Step Solution
- Step 1: Write the proportion equation
1,687,372.84 : 2,329,661.30 = 1,505,772.48 : x - Step 2: Convert to fraction form
1,687,372.84/2,329,661.30 = 1,505,772.48/x - Step 3: Cross multiply
1,687,372.84x = 2,329,661.30 × 1,505,772.48 - Step 4: Simplify right side
1,687,372.84x = 3,507,939,873,261.02 - Step 5: Solve for x
x = 3,507,939,873,261.02/1,687,372.84 - Step 6: Final answer
x = 2,078,935.84
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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.