Finding the Fourth Proportional to 1,211,444.08, 1,817,157.92 and 578,438.80
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Solution
The fourth proportional to 1,211,444.08, 1,817,157.92 and 578,438.80 is: 867,654.28
Step by Step Solution
- Step 1: Write the proportion equation
1,211,444.08 : 1,817,157.92 = 578,438.80 : x - Step 2: Convert to fraction form
1,211,444.08/1,817,157.92 = 578,438.80/x - Step 3: Cross multiply
1,211,444.08x = 1,817,157.92 × 578,438.80 - Step 4: Simplify right side
1,211,444.08x = 1,051,114,646,655.30 - Step 5: Solve for x
x = 1,051,114,646,655.30/1,211,444.08 - Step 6: Final answer
x = 867,654.28
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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.