Finding the Fourth Proportional to 4,478,641.38, 6,717,966.93 and 1,112,848.38
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Solution
The fourth proportional to 4,478,641.38, 6,717,966.93 and 1,112,848.38 is: 1,669,273.78
Step by Step Solution
- Step 1: Write the proportion equation
4,478,641.38 : 6,717,966.93 = 1,112,848.38 : x - Step 2: Convert to fraction form
4,478,641.38/6,717,966.93 = 1,112,848.38/x - Step 3: Cross multiply
4,478,641.38x = 6,717,966.93 × 1,112,848.38 - Step 4: Simplify right side
4,478,641.38x = 7,476,078,614,944.07 - Step 5: Solve for x
x = 7,476,078,614,944.07/4,478,641.38 - Step 6: Final answer
x = 1,669,273.78
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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.