Finding the Fourth Proportional to 1,442,206.80, 1,990,164.60 and 788,703.84
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Solution
The fourth proportional to 1,442,206.80, 1,990,164.60 and 788,703.84 is: 1,088,367.12
Step by Step Solution
- Step 1: Write the proportion equation
1,442,206.80 : 1,990,164.60 = 788,703.84 : x - Step 2: Convert to fraction form
1,442,206.80/1,990,164.60 = 788,703.84/x - Step 3: Cross multiply
1,442,206.80x = 1,990,164.60 × 788,703.84 - Step 4: Simplify right side
1,442,206.80x = 1,569,650,462,252.06 - Step 5: Solve for x
x = 1,569,650,462,252.06/1,442,206.80 - Step 6: Final answer
x = 1,088,367.12
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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.