Finding the Fourth Proportional to 970,135.47, 1,338,828.35 and 540,415.89
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Solution
The fourth proportional to 970,135.47, 1,338,828.35 and 540,415.89 is: 745,796.99
Step by Step Solution
- Step 1: Write the proportion equation
970,135.47 : 1,338,828.35 = 540,415.89 : x - Step 2: Convert to fraction form
970,135.47/1,338,828.35 = 540,415.89/x - Step 3: Cross multiply
970,135.47x = 1,338,828.35 × 540,415.89 - Step 4: Simplify right side
970,135.47x = 723,524,111,620.40 - Step 5: Solve for x
x = 723,524,111,620.40/970,135.47 - Step 6: Final answer
x = 745,796.99
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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.