Finding the Fourth Proportional to 647,548.40, 893,594.74 and 357,171.49
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Solution
The fourth proportional to 647,548.40, 893,594.74 and 357,171.49 is: 492,884.49
Step by Step Solution
- Step 1: Write the proportion equation
647,548.40 : 893,594.74 = 357,171.49 : x - Step 2: Convert to fraction form
647,548.40/893,594.74 = 357,171.49/x - Step 3: Cross multiply
647,548.40x = 893,594.74 × 357,171.49 - Step 4: Simplify right side
647,548.40x = 319,166,562,398.48 - Step 5: Solve for x
x = 319,166,562,398.48/647,548.40 - Step 6: Final answer
x = 492,884.49
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1.5x scale
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.