Finding the Fourth Proportional to 918,724.08, 1,378,270.06 and 514,491.14
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Solution
The fourth proportional to 918,724.08, 1,378,270.06 and 514,491.14 is: 771,839.72
Step by Step Solution
- Step 1: Write the proportion equation
918,724.08 : 1,378,270.06 = 514,491.14 : x - Step 2: Convert to fraction form
918,724.08/1,378,270.06 = 514,491.14/x - Step 3: Cross multiply
918,724.08x = 1,378,270.06 × 514,491.14 - Step 4: Simplify right side
918,724.08x = 709,107,734,397.27 - Step 5: Solve for x
x = 709,107,734,397.27/918,724.08 - Step 6: Final answer
x = 771,839.72
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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.