Finding the Fourth Proportional to 658,354.05, 908,164.80 and 535,978.08
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Solution
The fourth proportional to 658,354.05, 908,164.80 and 535,978.08 is: 739,353.58
Step by Step Solution
- Step 1: Write the proportion equation
658,354.05 : 908,164.80 = 535,978.08 : x - Step 2: Convert to fraction form
658,354.05/908,164.80 = 535,978.08/x - Step 3: Cross multiply
658,354.05x = 908,164.80 × 535,978.08 - Step 4: Simplify right side
658,354.05x = 486,756,425,827.58 - Step 5: Solve for x
x = 486,756,425,827.58/658,354.05 - Step 6: Final answer
x = 739,353.58
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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.