Finding the Fourth Proportional to 1,326,276.80, 1,987,082.40 and 1,088,331.20
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Solution
The fourth proportional to 1,326,276.80, 1,987,082.40 and 1,088,331.20 is: 1,630,582.52
Step by Step Solution
- Step 1: Write the proportion equation
1,326,276.80 : 1,987,082.40 = 1,088,331.20 : x - Step 2: Convert to fraction form
1,326,276.80/1,987,082.40 = 1,088,331.20/x - Step 3: Cross multiply
1,326,276.80x = 1,987,082.40 × 1,088,331.20 - Step 4: Simplify right side
1,326,276.80x = 2,162,603,772,890.88 - Step 5: Solve for x
x = 2,162,603,772,890.88/1,326,276.80 - Step 6: Final answer
x = 1,630,582.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.