Finding the Fourth Proportional to 1,293,627.12, 1,785,127.68 and 720,565.08
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Solution
The fourth proportional to 1,293,627.12, 1,785,127.68 and 720,565.08 is: 994,336.51
Step by Step Solution
- Step 1: Write the proportion equation
1,293,627.12 : 1,785,127.68 = 720,565.08 : x - Step 2: Convert to fraction form
1,293,627.12/1,785,127.68 = 720,565.08/x - Step 3: Cross multiply
1,293,627.12x = 1,785,127.68 × 720,565.08 - Step 4: Simplify right side
1,293,627.12x = 1,286,300,669,549.41 - Step 5: Solve for x
x = 1,286,300,669,549.41/1,293,627.12 - Step 6: Final answer
x = 994,336.51
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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.