Finding the Fourth Proportional to 708,190.70, 977,272.56 and 402,266.12
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Solution
The fourth proportional to 708,190.70, 977,272.56 and 402,266.12 is: 555,109.86
Step by Step Solution
- Step 1: Write the proportion equation
708,190.70 : 977,272.56 = 402,266.12 : x - Step 2: Convert to fraction form
708,190.70/977,272.56 = 402,266.12/x - Step 3: Cross multiply
708,190.70x = 977,272.56 × 402,266.12 - Step 4: Simplify right side
708,190.70x = 393,123,636,007.30 - Step 5: Solve for x
x = 393,123,636,007.30/708,190.70 - Step 6: Final answer
x = 555,109.86
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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.