Finding the Fourth Proportional to 449,177.13, 619,125.75 and 318,398.58
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Solution
The fourth proportional to 449,177.13, 619,125.75 and 318,398.58 is: 438,866.42
Step by Step Solution
- Step 1: Write the proportion equation
449,177.13 : 619,125.75 = 318,398.58 : x - Step 2: Convert to fraction form
449,177.13/619,125.75 = 318,398.58/x - Step 3: Cross multiply
449,177.13x = 619,125.75 × 318,398.58 - Step 4: Simplify right side
449,177.13x = 197,128,759,641.44 - Step 5: Solve for x
x = 197,128,759,641.44/449,177.13 - Step 6: Final answer
x = 438,866.42
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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.