Finding the Fourth Proportional to 1,312,927.35, 1,811,787.26 and 740,086.44
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Solution
The fourth proportional to 1,312,927.35, 1,811,787.26 and 740,086.44 is: 1,021,289.70
Step by Step Solution
- Step 1: Write the proportion equation
1,312,927.35 : 1,811,787.26 = 740,086.44 : x - Step 2: Convert to fraction form
1,312,927.35/1,811,787.26 = 740,086.44/x - Step 3: Cross multiply
1,312,927.35x = 1,811,787.26 × 740,086.44 - Step 4: Simplify right side
1,312,927.35x = 1,340,879,179,590.32 - Step 5: Solve for x
x = 1,340,879,179,590.32/1,312,927.35 - Step 6: Final answer
x = 1,021,289.70
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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.