Finding the Fourth Proportional to 1,681,189.99, 2,319,340.12 and 1,100,555.16
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Solution
The fourth proportional to 1,681,189.99, 2,319,340.12 and 1,100,555.16 is: 1,518,306.53
Step by Step Solution
- Step 1: Write the proportion equation
1,681,189.99 : 2,319,340.12 = 1,100,555.16 : x - Step 2: Convert to fraction form
1,681,189.99/2,319,340.12 = 1,100,555.16/x - Step 3: Cross multiply
1,681,189.99x = 2,319,340.12 × 1,100,555.16 - Step 4: Simplify right side
1,681,189.99x = 2,552,561,736,861.02 - Step 5: Solve for x
x = 2,552,561,736,861.02/1,681,189.99 - Step 6: Final answer
x = 1,518,306.53
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1.5x scale
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.