Finding the Fourth Proportional to 830,626.72, 1,245,940.08 and 475,393.12
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Solution
The fourth proportional to 830,626.72, 1,245,940.08 and 475,393.12 is: 713,089.68
Step by Step Solution
- Step 1: Write the proportion equation
830,626.72 : 1,245,940.08 = 475,393.12 : x - Step 2: Convert to fraction form
830,626.72/1,245,940.08 = 475,393.12/x - Step 3: Cross multiply
830,626.72x = 1,245,940.08 × 475,393.12 - Step 4: Simplify right side
830,626.72x = 592,311,341,964.25 - Step 5: Solve for x
x = 592,311,341,964.25/830,626.72 - Step 6: Final answer
x = 713,089.68
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Similar ratio
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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.