Finding the Fourth Proportional to 746,218.60, 1,118,997.66 and 213,618.28
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Solution
The fourth proportional to 746,218.60, 1,118,997.66 and 213,618.28 is: 320,332.88
Step by Step Solution
- Step 1: Write the proportion equation
746,218.60 : 1,118,997.66 = 213,618.28 : x - Step 2: Convert to fraction form
746,218.60/1,118,997.66 = 213,618.28/x - Step 3: Cross multiply
746,218.60x = 1,118,997.66 × 213,618.28 - Step 4: Simplify right side
746,218.60x = 239,038,355,453.23 - Step 5: Solve for x
x = 239,038,355,453.23/746,218.60 - Step 6: Final answer
x = 320,332.88
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1.5x scale
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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.