Finding the Fourth Proportional to 1,328,579.61, 1,832,808.40 and 784,350.81
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Solution
The fourth proportional to 1,328,579.61, 1,832,808.40 and 784,350.81 is: 1,082,031.32
Step by Step Solution
- Step 1: Write the proportion equation
1,328,579.61 : 1,832,808.40 = 784,350.81 : x - Step 2: Convert to fraction form
1,328,579.61/1,832,808.40 = 784,350.81/x - Step 3: Cross multiply
1,328,579.61x = 1,832,808.40 × 784,350.81 - Step 4: Simplify right side
1,328,579.61x = 1,437,564,751,153.93 - Step 5: Solve for x
x = 1,437,564,751,153.93/1,328,579.61 - Step 6: Final answer
x = 1,082,031.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.