Finding the Fourth Proportional to 528,546.64, 729,430.32 and 299,104.08
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Solution
The fourth proportional to 528,546.64, 729,430.32 and 299,104.08 is: 412,783.98
Step by Step Solution
- Step 1: Write the proportion equation
528,546.64 : 729,430.32 = 299,104.08 : x - Step 2: Convert to fraction form
528,546.64/729,430.32 = 299,104.08/x - Step 3: Cross multiply
528,546.64x = 729,430.32 × 299,104.08 - Step 4: Simplify right side
528,546.64x = 218,175,584,787.71 - Step 5: Solve for x
x = 218,175,584,787.71/528,546.64 - Step 6: Final answer
x = 412,783.98
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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.