Finding the Fourth Proportional to 919,319.66, 1,378,979.50 and 288,282.68
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Solution
The fourth proportional to 919,319.66, 1,378,979.50 and 288,282.68 is: 432,424.02
Step by Step Solution
- Step 1: Write the proportion equation
919,319.66 : 1,378,979.50 = 288,282.68 : x - Step 2: Convert to fraction form
919,319.66/1,378,979.50 = 288,282.68/x - Step 3: Cross multiply
919,319.66x = 1,378,979.50 × 288,282.68 - Step 4: Simplify right side
919,319.66x = 397,535,905,925.06 - Step 5: Solve for x
x = 397,535,905,925.06/919,319.66 - Step 6: Final answer
x = 432,424.02
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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.