Finding the Fourth Proportional to 1,512,376.65, 2,087,226.86 and 1,129,739.13
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Solution
The fourth proportional to 1,512,376.65, 2,087,226.86 and 1,129,739.13 is: 1,559,149.87
Step by Step Solution
- Step 1: Write the proportion equation
1,512,376.65 : 2,087,226.86 = 1,129,739.13 : x - Step 2: Convert to fraction form
1,512,376.65/2,087,226.86 = 1,129,739.13/x - Step 3: Cross multiply
1,512,376.65x = 2,087,226.86 × 1,129,739.13 - Step 4: Simplify right side
1,512,376.65x = 2,358,021,851,280.34 - Step 5: Solve for x
x = 2,358,021,851,280.34/1,512,376.65 - Step 6: Final answer
x = 1,559,149.87
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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.