Finding the Fourth Proportional to 939,415, 1,296,354.88 and 509,678.68
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Solution
The fourth proportional to 939,415, 1,296,354.88 and 509,678.68 is: 703,336.06
Step by Step Solution
- Step 1: Write the proportion equation
939,415 : 1,296,354.88 = 509,678.68 : x - Step 2: Convert to fraction form
939,415/1,296,354.88 = 509,678.68/x - Step 3: Cross multiply
939,415x = 1,296,354.88 × 509,678.68 - Step 4: Simplify right side
939,415x = 660,724,444,049.96 - Step 5: Solve for x
x = 660,724,444,049.96/939,415 - Step 6: Final answer
x = 703,336.06
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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.