Finding the Fourth Proportional to 487,763.44, 673,139.68 and 272,890.64
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Solution
The fourth proportional to 487,763.44, 673,139.68 and 272,890.64 is: 376,603.70
Step by Step Solution
- Step 1: Write the proportion equation
487,763.44 : 673,139.68 = 272,890.64 : x - Step 2: Convert to fraction form
487,763.44/673,139.68 = 272,890.64/x - Step 3: Cross multiply
487,763.44x = 673,139.68 × 272,890.64 - Step 4: Simplify right side
487,763.44x = 183,693,518,084.60 - Step 5: Solve for x
x = 183,693,518,084.60/487,763.44 - Step 6: Final answer
x = 376,603.70
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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.