Finding the Fourth Proportional to 612,412.48, 845,199.12 and 340,507.36
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Solution
The fourth proportional to 612,412.48, 845,199.12 and 340,507.36 is: 469,939.02
Step by Step Solution
- Step 1: Write the proportion equation
612,412.48 : 845,199.12 = 340,507.36 : x - Step 2: Convert to fraction form
612,412.48/845,199.12 = 340,507.36/x - Step 3: Cross multiply
612,412.48x = 845,199.12 × 340,507.36 - Step 4: Simplify right side
612,412.48x = 287,796,521,025.52 - Step 5: Solve for x
x = 287,796,521,025.52/612,412.48 - Step 6: Final answer
x = 469,939.02
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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.