Finding the Fourth Proportional to 811,406.34, 1,119,654.55 and 448,772.58
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Solution
The fourth proportional to 811,406.34, 1,119,654.55 and 448,772.58 is: 619,258.49
Step by Step Solution
- Step 1: Write the proportion equation
811,406.34 : 1,119,654.55 = 448,772.58 : x - Step 2: Convert to fraction form
811,406.34/1,119,654.55 = 448,772.58/x - Step 3: Cross multiply
811,406.34x = 1,119,654.55 × 448,772.58 - Step 4: Simplify right side
811,406.34x = 502,470,261,112.24 - Step 5: Solve for x
x = 502,470,261,112.24/811,406.34 - Step 6: Final answer
x = 619,258.49
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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.