Finding the Fourth Proportional to 1,681,070.56, 2,319,869.57 and 917,124.12
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Solution
The fourth proportional to 1,681,070.56, 2,319,869.57 and 917,124.12 is: 1,265,627.03
Step by Step Solution
- Step 1: Write the proportion equation
1,681,070.56 : 2,319,869.57 = 917,124.12 : x - Step 2: Convert to fraction form
1,681,070.56/2,319,869.57 = 917,124.12/x - Step 3: Cross multiply
1,681,070.56x = 2,319,869.57 × 917,124.12 - Step 4: Simplify right side
1,681,070.56x = 2,127,608,333,315.41 - Step 5: Solve for x
x = 2,127,608,333,315.41/1,681,070.56 - Step 6: Final answer
x = 1,265,627.03
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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.