Finding the Fourth Proportional to 987,125.30, 1,385,124.70 and 987,125.30
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Solution
The fourth proportional to 987,125.30, 1,385,124.70 and 987,125.30 is: 1,385,124.70
Step by Step Solution
- Step 1: Write the proportion equation
987,125.30 : 1,385,124.70 = 987,125.30 : x - Step 2: Convert to fraction form
987,125.30/1,385,124.70 = 987,125.30/x - Step 3: Cross multiply
987,125.30x = 1,385,124.70 × 987,125.30 - Step 4: Simplify right side
987,125.30x = 1,367,291,635,024.91 - Step 5: Solve for x
x = 1,367,291,635,024.91/987,125.30 - Step 6: Final answer
x = 1,385,124.70
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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.