Finding the Fourth Proportional to 1,318,968.70, 1,820,176.95 and 745,996.70
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Solution
The fourth proportional to 1,318,968.70, 1,820,176.95 and 745,996.70 is: 1,029,475.53
Step by Step Solution
- Step 1: Write the proportion equation
1,318,968.70 : 1,820,176.95 = 745,996.70 : x - Step 2: Convert to fraction form
1,318,968.70/1,820,176.95 = 745,996.70/x - Step 3: Cross multiply
1,318,968.70x = 1,820,176.95 × 745,996.70 - Step 4: Simplify right side
1,318,968.70x = 1,357,845,998,116.07 - Step 5: Solve for x
x = 1,357,845,998,116.07/1,318,968.70 - Step 6: Final answer
x = 1,029,475.53
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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.