Finding the Fourth Proportional to 2,046,643.81, 2,824,346.07 and 1,128,911.68
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Solution
The fourth proportional to 2,046,643.81, 2,824,346.07 and 1,128,911.68 is: 1,557,885.77
Step by Step Solution
- Step 1: Write the proportion equation
2,046,643.81 : 2,824,346.07 = 1,128,911.68 : x - Step 2: Convert to fraction form
2,046,643.81/2,824,346.07 = 1,128,911.68/x - Step 3: Cross multiply
2,046,643.81x = 2,824,346.07 × 1,128,911.68 - Step 4: Simplify right side
2,046,643.81x = 3,188,437,270,315.53 - Step 5: Solve for x
x = 3,188,437,270,315.53/2,046,643.81 - Step 6: Final answer
x = 1,557,885.77
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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.