Finding the Fourth Proportional to 2,387,115.09, 3,294,260.78 and 1,299,417.93
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Solution
The fourth proportional to 2,387,115.09, 3,294,260.78 and 1,299,417.93 is: 1,793,219.58
Step by Step Solution
- Step 1: Write the proportion equation
2,387,115.09 : 3,294,260.78 = 1,299,417.93 : x - Step 2: Convert to fraction form
2,387,115.09/3,294,260.78 = 1,299,417.93/x - Step 3: Cross multiply
2,387,115.09x = 3,294,260.78 × 1,299,417.93 - Step 4: Simplify right side
2,387,115.09x = 4,280,621,517,130.70 - Step 5: Solve for x
x = 4,280,621,517,130.70/2,387,115.09 - Step 6: Final answer
x = 1,793,219.58
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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.