Finding the Fourth Proportional to 1,991,487.68, 2,987,252.08 and 495,579.68
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Solution
The fourth proportional to 1,991,487.68, 2,987,252.08 and 495,579.68 is: 743,374.64
Step by Step Solution
- Step 1: Write the proportion equation
1,991,487.68 : 2,987,252.08 = 495,579.68 : x - Step 2: Convert to fraction form
1,991,487.68/2,987,252.08 = 495,579.68/x - Step 3: Cross multiply
1,991,487.68x = 2,987,252.08 × 495,579.68 - Step 4: Simplify right side
1,991,487.68x = 1,480,421,429,885.73 - Step 5: Solve for x
x = 1,480,421,429,885.73/1,991,487.68 - Step 6: Final answer
x = 743,374.64
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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.