Finding the Fourth Proportional to 943,844.69, 1,415,220.27 and 644,686.79
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Solution
The fourth proportional to 943,844.69, 1,415,220.27 and 644,686.79 is: 966,656.72
Step by Step Solution
- Step 1: Write the proportion equation
943,844.69 : 1,415,220.27 = 644,686.79 : x - Step 2: Convert to fraction form
943,844.69/1,415,220.27 = 644,686.79/x - Step 3: Cross multiply
943,844.69x = 1,415,220.27 × 644,686.79 - Step 4: Simplify right side
943,844.69x = 912,373,805,933.13 - Step 5: Solve for x
x = 912,373,805,933.13/943,844.69 - Step 6: Final answer
x = 966,656.72
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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.