Finding the Fourth Proportional to 521,897.70, 720,206.64 and 307,051.62
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Solution
The fourth proportional to 521,897.70, 720,206.64 and 307,051.62 is: 423,724.07
Step by Step Solution
- Step 1: Write the proportion equation
521,897.70 : 720,206.64 = 307,051.62 : x - Step 2: Convert to fraction form
521,897.70/720,206.64 = 307,051.62/x - Step 3: Cross multiply
521,897.70x = 720,206.64 × 307,051.62 - Step 4: Simplify right side
521,897.70x = 221,140,615,546.76 - Step 5: Solve for x
x = 221,140,615,546.76/521,897.70 - Step 6: Final answer
x = 423,724.07
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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.