Finding the Fourth Proportional to 1,133,542.42, 1,564,346.45 and 643,546.28
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Solution
The fourth proportional to 1,133,542.42, 1,564,346.45 and 643,546.28 is: 888,126.75
Step by Step Solution
- Step 1: Write the proportion equation
1,133,542.42 : 1,564,346.45 = 643,546.28 : x - Step 2: Convert to fraction form
1,133,542.42/1,564,346.45 = 643,546.28/x - Step 3: Cross multiply
1,133,542.42x = 1,564,346.45 × 643,546.28 - Step 4: Simplify right side
1,133,542.42x = 1,006,729,344,048.44 - Step 5: Solve for x
x = 1,006,729,344,048.44/1,133,542.42 - Step 6: Final answer
x = 888,126.75
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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.