Finding the Fourth Proportional to 1,130,753.70, 1,696,130.55 and 465,905.70
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Solution
The fourth proportional to 1,130,753.70, 1,696,130.55 and 465,905.70 is: 698,858.55
Step by Step Solution
- Step 1: Write the proportion equation
1,130,753.70 : 1,696,130.55 = 465,905.70 : x - Step 2: Convert to fraction form
1,130,753.70/1,696,130.55 = 465,905.70/x - Step 3: Cross multiply
1,130,753.70x = 1,696,130.55 × 465,905.70 - Step 4: Simplify right side
1,130,753.70x = 790,236,891,189.14 - Step 5: Solve for x
x = 790,236,891,189.14/1,130,753.70 - Step 6: Final answer
x = 698,858.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.