Finding the Fourth Proportional to 630,589.84, 870,232.49 and 344,128.42
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Solution
The fourth proportional to 630,589.84, 870,232.49 and 344,128.42 is: 474,907.32
Step by Step Solution
- Step 1: Write the proportion equation
630,589.84 : 870,232.49 = 344,128.42 : x - Step 2: Convert to fraction form
630,589.84/870,232.49 = 344,128.42/x - Step 3: Cross multiply
630,589.84x = 870,232.49 × 344,128.42 - Step 4: Simplify right side
630,589.84x = 299,471,731,816.37 - Step 5: Solve for x
x = 299,471,731,816.37/630,589.84 - Step 6: Final answer
x = 474,907.32
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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.