Finding the Fourth Proportional to 990,868.32, 1,367,397.08 and 538,156.08
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Solution
The fourth proportional to 990,868.32, 1,367,397.08 and 538,156.08 is: 742,654.74
Step by Step Solution
- Step 1: Write the proportion equation
990,868.32 : 1,367,397.08 = 538,156.08 : x - Step 2: Convert to fraction form
990,868.32/1,367,397.08 = 538,156.08/x - Step 3: Cross multiply
990,868.32x = 1,367,397.08 × 538,156.08 - Step 4: Simplify right side
990,868.32x = 735,873,052,376.25 - Step 5: Solve for x
x = 735,873,052,376.25/990,868.32 - Step 6: Final answer
x = 742,654.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.