Finding the Fourth Proportional to 665,998.39, 998,911.02 and 266,643.08
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Solution
The fourth proportional to 665,998.39, 998,911.02 and 266,643.08 is: 399,929.96
Step by Step Solution
- Step 1: Write the proportion equation
665,998.39 : 998,911.02 = 266,643.08 : x - Step 2: Convert to fraction form
665,998.39/998,911.02 = 266,643.08/x - Step 3: Cross multiply
665,998.39x = 998,911.02 × 266,643.08 - Step 4: Simplify right side
665,998.39x = 266,352,711,018.74 - Step 5: Solve for x
x = 266,352,711,018.74/665,998.39 - Step 6: Final answer
x = 399,929.96
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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.