Finding the Fourth Proportional to 657,343.13, 907,133.58 and 355,537.13
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Solution
The fourth proportional to 657,343.13, 907,133.58 and 355,537.13 is: 490,641.27
Step by Step Solution
- Step 1: Write the proportion equation
657,343.13 : 907,133.58 = 355,537.13 : x - Step 2: Convert to fraction form
657,343.13/907,133.58 = 355,537.13/x - Step 3: Cross multiply
657,343.13x = 907,133.58 × 355,537.13 - Step 4: Simplify right side
657,343.13x = 322,519,665,024.16 - Step 5: Solve for x
x = 322,519,665,024.16/657,343.13 - Step 6: Final answer
x = 490,641.27
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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.