Finding the Fourth Proportional to 1,587,026.71, 2,190,767.06 and 1,071,478.99
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Solution
The fourth proportional to 1,587,026.71, 2,190,767.06 and 1,071,478.99 is: 1,479,093.49
Step by Step Solution
- Step 1: Write the proportion equation
1,587,026.71 : 2,190,767.06 = 1,071,478.99 : x - Step 2: Convert to fraction form
1,587,026.71/2,190,767.06 = 1,071,478.99/x - Step 3: Cross multiply
1,587,026.71x = 2,190,767.06 × 1,071,478.99 - Step 4: Simplify right side
1,587,026.71x = 2,347,360,873,975.85 - Step 5: Solve for x
x = 2,347,360,873,975.85/1,587,026.71 - Step 6: Final answer
x = 1,479,093.49
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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.