Finding the Fourth Proportional to 509,215.75, 763,824.65 and 189,437.74
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Solution
The fourth proportional to 509,215.75, 763,824.65 and 189,437.74 is: 284,156.99
Step by Step Solution
- Step 1: Write the proportion equation
509,215.75 : 763,824.65 = 189,437.74 : x - Step 2: Convert to fraction form
509,215.75/763,824.65 = 189,437.74/x - Step 3: Cross multiply
509,215.75x = 763,824.65 × 189,437.74 - Step 4: Simplify right side
509,215.75x = 144,697,212,595.54 - Step 5: Solve for x
x = 144,697,212,595.54/509,215.75 - Step 6: Final answer
x = 284,156.99
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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.