Finding the Fourth Proportional to 608,489.28, 839,458.08 and 407,350.08
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Solution
The fourth proportional to 608,489.28, 839,458.08 and 407,350.08 is: 561,970.98
Step by Step Solution
- Step 1: Write the proportion equation
608,489.28 : 839,458.08 = 407,350.08 : x - Step 2: Convert to fraction form
608,489.28/839,458.08 = 407,350.08/x - Step 3: Cross multiply
608,489.28x = 839,458.08 × 407,350.08 - Step 4: Simplify right side
608,489.28x = 341,953,316,044.65 - Step 5: Solve for x
x = 341,953,316,044.65/608,489.28 - Step 6: Final answer
x = 561,970.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.