Finding the Fourth Proportional to 898,478.97, 1,239,926.50 and 490,606.65
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Solution
The fourth proportional to 898,478.97, 1,239,926.50 and 490,606.65 is: 677,051.11
Step by Step Solution
- Step 1: Write the proportion equation
898,478.97 : 1,239,926.50 = 490,606.65 : x - Step 2: Convert to fraction form
898,478.97/1,239,926.50 = 490,606.65/x - Step 3: Cross multiply
898,478.97x = 1,239,926.50 × 490,606.65 - Step 4: Simplify right side
898,478.97x = 608,316,186,411.23 - Step 5: Solve for x
x = 608,316,186,411.23/898,478.97 - Step 6: Final answer
x = 677,051.11
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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.