Finding the Fourth Proportional to 875,121.19, 1,312,681.79 and 210,273.19
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Solution
The fourth proportional to 875,121.19, 1,312,681.79 and 210,273.19 is: 315,409.78
Step by Step Solution
- Step 1: Write the proportion equation
875,121.19 : 1,312,681.79 = 210,273.19 : x - Step 2: Convert to fraction form
875,121.19/1,312,681.79 = 210,273.19/x - Step 3: Cross multiply
875,121.19x = 1,312,681.79 × 210,273.19 - Step 4: Simplify right side
875,121.19x = 276,021,784,682.19 - Step 5: Solve for x
x = 276,021,784,682.19/875,121.19 - Step 6: Final answer
x = 315,409.78
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1.5x scale
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.