Finding the Fourth Proportional to 867,101.11, 1,298,968.41 and 638,982.65
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Solution
The fourth proportional to 867,101.11, 1,298,968.41 and 638,982.65 is: 957,233.55
Step by Step Solution
- Step 1: Write the proportion equation
867,101.11 : 1,298,968.41 = 638,982.65 : x - Step 2: Convert to fraction form
867,101.11/1,298,968.41 = 638,982.65/x - Step 3: Cross multiply
867,101.11x = 1,298,968.41 × 638,982.65 - Step 4: Simplify right side
867,101.11x = 830,018,276,888.09 - Step 5: Solve for x
x = 830,018,276,888.09/867,101.11 - Step 6: Final answer
x = 957,233.55
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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.