Finding the Fourth Proportional to 862,931.49, 1,190,886.21 and 480,961.01
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Solution
The fourth proportional to 862,931.49, 1,190,886.21 and 480,961.01 is: 663,748.90
Step by Step Solution
- Step 1: Write the proportion equation
862,931.49 : 1,190,886.21 = 480,961.01 : x - Step 2: Convert to fraction form
862,931.49/1,190,886.21 = 480,961.01/x - Step 3: Cross multiply
862,931.49x = 1,190,886.21 × 480,961.01 - Step 4: Simplify right side
862,931.49x = 572,769,828,402.24 - Step 5: Solve for x
x = 572,769,828,402.24/862,931.49 - Step 6: Final answer
x = 663,748.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.