Finding the Fourth Proportional to 652,121.70, 978,182.55 and 403,289.70
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Solution
The fourth proportional to 652,121.70, 978,182.55 and 403,289.70 is: 604,934.55
Step by Step Solution
- Step 1: Write the proportion equation
652,121.70 : 978,182.55 = 403,289.70 : x - Step 2: Convert to fraction form
652,121.70/978,182.55 = 403,289.70/x - Step 3: Cross multiply
652,121.70x = 978,182.55 × 403,289.70 - Step 4: Simplify right side
652,121.70x = 394,490,947,134.74 - Step 5: Solve for x
x = 394,490,947,134.74/652,121.70 - Step 6: Final answer
x = 604,934.55
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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.