Finding the Fourth Proportional to 912,374.80, 1,368,367.80 and 406,934.80
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Solution
The fourth proportional to 912,374.80, 1,368,367.80 and 406,934.80 is: 610,315.49
Step by Step Solution
- Step 1: Write the proportion equation
912,374.80 : 1,368,367.80 = 406,934.80 : x - Step 2: Convert to fraction form
912,374.80/1,368,367.80 = 406,934.80/x - Step 3: Cross multiply
912,374.80x = 1,368,367.80 × 406,934.80 - Step 4: Simplify right side
912,374.80x = 556,836,477,019.44 - Step 5: Solve for x
x = 556,836,477,019.44/912,374.80 - Step 6: Final answer
x = 610,315.49
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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.