Finding the Fourth Proportional to 1,528,215.04, 2,106,829.07 and 1,219,166.29
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Solution
The fourth proportional to 1,528,215.04, 2,106,829.07 and 1,219,166.29 is: 1,680,768.03
Step by Step Solution
- Step 1: Write the proportion equation
1,528,215.04 : 2,106,829.07 = 1,219,166.29 : x - Step 2: Convert to fraction form
1,528,215.04/2,106,829.07 = 1,219,166.29/x - Step 3: Cross multiply
1,528,215.04x = 2,106,829.07 × 1,219,166.29 - Step 4: Simplify right side
1,528,215.04x = 2,568,574,974,840.22 - Step 5: Solve for x
x = 2,568,574,974,840.22/1,528,215.04 - Step 6: Final answer
x = 1,680,768.03
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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.