Finding the Fourth Proportional to 1,159,157.80, 1,736,403.90 and 781,244.20
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Solution
The fourth proportional to 1,159,157.80, 1,736,403.90 and 781,244.20 is: 1,170,294.05
Step by Step Solution
- Step 1: Write the proportion equation
1,159,157.80 : 1,736,403.90 = 781,244.20 : x - Step 2: Convert to fraction form
1,159,157.80/1,736,403.90 = 781,244.20/x - Step 3: Cross multiply
1,159,157.80x = 1,736,403.90 × 781,244.20 - Step 4: Simplify right side
1,159,157.80x = 1,356,555,475,732.38 - Step 5: Solve for x
x = 1,356,555,475,732.38/1,159,157.80 - Step 6: Final answer
x = 1,170,294.05
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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.