Finding the Fourth Proportional to 1,245,630.65, 1,718,970.26 and 672,670.80
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Solution
The fourth proportional to 1,245,630.65, 1,718,970.26 and 672,670.80 is: 928,285.68
Step by Step Solution
- Step 1: Write the proportion equation
1,245,630.65 : 1,718,970.26 = 672,670.80 : x - Step 2: Convert to fraction form
1,245,630.65/1,718,970.26 = 672,670.80/x - Step 3: Cross multiply
1,245,630.65x = 1,718,970.26 × 672,670.80 - Step 4: Simplify right side
1,245,630.65x = 1,156,301,099,970.41 - Step 5: Solve for x
x = 1,156,301,099,970.41/1,245,630.65 - Step 6: Final answer
x = 928,285.68
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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.