Finding the Fourth Proportional to 926,437.20, 1,389,655.80 and 891,007.80
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Solution
The fourth proportional to 926,437.20, 1,389,655.80 and 891,007.80 is: 1,336,511.70
Step by Step Solution
- Step 1: Write the proportion equation
926,437.20 : 1,389,655.80 = 891,007.80 : x - Step 2: Convert to fraction form
926,437.20/1,389,655.80 = 891,007.80/x - Step 3: Cross multiply
926,437.20x = 1,389,655.80 × 891,007.80 - Step 4: Simplify right side
926,437.20x = 1,238,194,157,115.24 - Step 5: Solve for x
x = 1,238,194,157,115.24/926,437.20 - Step 6: Final answer
x = 1,336,511.70
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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.