Finding the Fourth Proportional to 1,781,164.28, 2,665,439.62 and 1,107,562.79
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Solution
The fourth proportional to 1,781,164.28, 2,665,439.62 and 1,107,562.79 is: 1,657,422.49
Step by Step Solution
- Step 1: Write the proportion equation
1,781,164.28 : 2,665,439.62 = 1,107,562.79 : x - Step 2: Convert to fraction form
1,781,164.28/2,665,439.62 = 1,107,562.79/x - Step 3: Cross multiply
1,781,164.28x = 2,665,439.62 × 1,107,562.79 - Step 4: Simplify right side
1,781,164.28x = 2,952,141,742,103.74 - Step 5: Solve for x
x = 2,952,141,742,103.74/1,781,164.28 - Step 6: Final answer
x = 1,657,422.49
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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.