Finding the Fourth Proportional to 1,280,798.79, 1,768,326.98 and 822,111.99
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Solution
The fourth proportional to 1,280,798.79, 1,768,326.98 and 822,111.99 is: 1,135,043.86
Step by Step Solution
- Step 1: Write the proportion equation
1,280,798.79 : 1,768,326.98 = 822,111.99 : x - Step 2: Convert to fraction form
1,280,798.79/1,768,326.98 = 822,111.99/x - Step 3: Cross multiply
1,280,798.79x = 1,768,326.98 × 822,111.99 - Step 4: Simplify right side
1,280,798.79x = 1,453,762,808,387.93 - Step 5: Solve for x
x = 1,453,762,808,387.93/1,280,798.79 - Step 6: Final answer
x = 1,135,043.86
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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.