Finding the Fourth Proportional to 1,244,822.99, 1,718,587.80 and 1,173,078.45
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Solution
The fourth proportional to 1,244,822.99, 1,718,587.80 and 1,173,078.45 is: 1,619,538.15
Step by Step Solution
- Step 1: Write the proportion equation
1,244,822.99 : 1,718,587.80 = 1,173,078.45 : x - Step 2: Convert to fraction form
1,244,822.99/1,718,587.80 = 1,173,078.45/x - Step 3: Cross multiply
1,244,822.99x = 1,718,587.80 × 1,173,078.45 - Step 4: Simplify right side
1,244,822.99x = 2,016,038,312,612.91 - Step 5: Solve for x
x = 2,016,038,312,612.91/1,244,822.99 - Step 6: Final answer
x = 1,619,538.15
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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.