Finding the Fourth Proportional to 657,285.63, 907,054.16 and 355,479.63
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Solution
The fourth proportional to 657,285.63, 907,054.16 and 355,479.63 is: 490,561.88
Step by Step Solution
- Step 1: Write the proportion equation
657,285.63 : 907,054.16 = 355,479.63 : x - Step 2: Convert to fraction form
657,285.63/907,054.16 = 355,479.63/x - Step 3: Cross multiply
657,285.63x = 907,054.16 × 355,479.63 - Step 4: Simplify right side
657,285.63x = 322,439,273,540.19 - Step 5: Solve for x
x = 322,439,273,540.19/657,285.63 - Step 6: Final answer
x = 490,561.88
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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.