Finding the Fourth Proportional to 1,515,451.65, 2,091,594.20 and 903,643.80
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Solution
The fourth proportional to 1,515,451.65, 2,091,594.20 and 903,643.80 is: 1,247,189.99
Step by Step Solution
- Step 1: Write the proportion equation
1,515,451.65 : 2,091,594.20 = 903,643.80 : x - Step 2: Convert to fraction form
1,515,451.65/2,091,594.20 = 903,643.80/x - Step 3: Cross multiply
1,515,451.65x = 2,091,594.20 × 903,643.80 - Step 4: Simplify right side
1,515,451.65x = 1,890,056,126,427.74 - Step 5: Solve for x
x = 1,890,056,126,427.74/1,515,451.65 - Step 6: Final answer
x = 1,247,189.99
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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.