Finding the Fourth Proportional to 561,828.84, 775,318.50 and 307,177.32
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Solution
The fourth proportional to 561,828.84, 775,318.50 and 307,177.32 is: 423,901.80
Step by Step Solution
- Step 1: Write the proportion equation
561,828.84 : 775,318.50 = 307,177.32 : x - Step 2: Convert to fraction form
561,828.84/775,318.50 = 307,177.32/x - Step 3: Cross multiply
561,828.84x = 775,318.50 × 307,177.32 - Step 4: Simplify right side
561,828.84x = 238,160,258,976.42 - Step 5: Solve for x
x = 238,160,258,976.42/561,828.84 - Step 6: Final answer
x = 423,901.80
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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.