Finding the Fourth Proportional to 2,381,698.78, 3,286,726.60 and 1,293,979.30
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Solution
The fourth proportional to 2,381,698.78, 3,286,726.60 and 1,293,979.30 is: 1,785,681.81
Step by Step Solution
- Step 1: Write the proportion equation
2,381,698.78 : 3,286,726.60 = 1,293,979.30 : x - Step 2: Convert to fraction form
2,381,698.78/3,286,726.60 = 1,293,979.30/x - Step 3: Cross multiply
2,381,698.78x = 3,286,726.60 × 1,293,979.30 - Step 4: Simplify right side
2,381,698.78x = 4,252,956,185,159.38 - Step 5: Solve for x
x = 4,252,956,185,159.38/2,381,698.78 - Step 6: Final answer
x = 1,785,681.81
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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.