Finding the Fourth Proportional to 4,158,521.60, 6,238,268.40 and 1,318,920.80
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Solution
The fourth proportional to 4,158,521.60, 6,238,268.40 and 1,318,920.80 is: 1,978,535.34
Step by Step Solution
- Step 1: Write the proportion equation
4,158,521.60 : 6,238,268.40 = 1,318,920.80 : x - Step 2: Convert to fraction form
4,158,521.60/6,238,268.40 = 1,318,920.80/x - Step 3: Cross multiply
4,158,521.60x = 6,238,268.40 × 1,318,920.80 - Step 4: Simplify right side
4,158,521.60x = 8,227,781,948,742.72 - Step 5: Solve for x
x = 8,227,781,948,742.72/4,158,521.60 - Step 6: Final answer
x = 1,978,535.34
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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.