Finding the Fourth Proportional to 1,927,721.40, 2,660,271.18 and 1,068,295.80
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Solution
The fourth proportional to 1,927,721.40, 2,660,271.18 and 1,068,295.80 is: 1,474,256.88
Step by Step Solution
- Step 1: Write the proportion equation
1,927,721.40 : 2,660,271.18 = 1,068,295.80 : x - Step 2: Convert to fraction form
1,927,721.40/2,660,271.18 = 1,068,295.80/x - Step 3: Cross multiply
1,927,721.40x = 2,660,271.18 × 1,068,295.80 - Step 4: Simplify right side
1,927,721.40x = 2,841,956,528,455.04 - Step 5: Solve for x
x = 2,841,956,528,455.04/1,927,721.40 - Step 6: Final answer
x = 1,474,256.88
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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.