Finding the Fourth Proportional to 657,186.08, 906,916.80 and 355,380.08
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Solution
The fourth proportional to 657,186.08, 906,916.80 and 355,380.08 is: 490,424.52
Step by Step Solution
- Step 1: Write the proportion equation
657,186.08 : 906,916.80 = 355,380.08 : x - Step 2: Convert to fraction form
657,186.08/906,916.80 = 355,380.08/x - Step 3: Cross multiply
657,186.08x = 906,916.80 × 355,380.08 - Step 4: Simplify right side
657,186.08x = 322,300,164,937.34 - Step 5: Solve for x
x = 322,300,164,937.34/657,186.08 - Step 6: Final answer
x = 490,424.52
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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.