Finding the Fourth Proportional to 2,109,444.32, 2,911,033.99 and 1,142,571.62
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Solution
The fourth proportional to 2,109,444.32, 2,911,033.99 and 1,142,571.62 is: 1,576,749.29
Step by Step Solution
- Step 1: Write the proportion equation
2,109,444.32 : 2,911,033.99 = 1,142,571.62 : x - Step 2: Convert to fraction form
2,109,444.32/2,911,033.99 = 1,142,571.62/x - Step 3: Cross multiply
2,109,444.32x = 2,911,033.99 × 1,142,571.62 - Step 4: Simplify right side
2,109,444.32x = 3,326,064,830,535.16 - Step 5: Solve for x
x = 3,326,064,830,535.16/2,109,444.32 - Step 6: Final answer
x = 1,576,749.29
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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.