Finding the Fourth Proportional to 876,990.75, 1,210,247.24 and 474,582.75
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Solution
The fourth proportional to 876,990.75, 1,210,247.24 and 474,582.75 is: 654,924.20
Step by Step Solution
- Step 1: Write the proportion equation
876,990.75 : 1,210,247.24 = 474,582.75 : x - Step 2: Convert to fraction form
876,990.75/1,210,247.24 = 474,582.75/x - Step 3: Cross multiply
876,990.75x = 1,210,247.24 × 474,582.75 - Step 4: Simplify right side
876,990.75x = 574,362,460,966.20 - Step 5: Solve for x
x = 574,362,460,966.20/876,990.75 - Step 6: Final answer
x = 654,924.20
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1.5x scale
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.