Finding the Fourth Proportional to 5,319,728.74, 7,980,713.94 and 1,725,215.40
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Solution
The fourth proportional to 5,319,728.74, 7,980,713.94 and 1,725,215.40 is: 2,588,186.59
Step by Step Solution
- Step 1: Write the proportion equation
5,319,728.74 : 7,980,713.94 = 1,725,215.40 : x - Step 2: Convert to fraction form
5,319,728.74/7,980,713.94 = 1,725,215.40/x - Step 3: Cross multiply
5,319,728.74x = 7,980,713.94 × 1,725,215.40 - Step 4: Simplify right side
5,319,728.74x = 13,768,450,592,282.68 - Step 5: Solve for x
x = 13,768,450,592,282.68/5,319,728.74 - Step 6: Final answer
x = 2,588,186.59
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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.