Finding the Fourth Proportional to 905,028.50, 1,357,521.68 and 455,628.62
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Solution
The fourth proportional to 905,028.50, 1,357,521.68 and 455,628.62 is: 683,432.32
Step by Step Solution
- Step 1: Write the proportion equation
905,028.50 : 1,357,521.68 = 455,628.62 : x - Step 2: Convert to fraction form
905,028.50/1,357,521.68 = 455,628.62/x - Step 3: Cross multiply
905,028.50x = 1,357,521.68 × 455,628.62 - Step 4: Simplify right side
905,028.50x = 618,525,729,678.48 - Step 5: Solve for x
x = 618,525,729,678.48/905,028.50 - Step 6: Final answer
x = 683,432.32
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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.